Why Do Some People Cheat in Relationships and Others Remain Faithful?

With the development of the internet, dating websites, social media, smartphones and dating apps, it is now easier than ever for someone to cheat on their partner or spouse.

This same technology can also make it easier to get caught due to the potential digital trail created by these unscrupulous liaisons.

The Ashley Maddison hack and the scandal were examples of technology helping people have extramarital affairs and leading to them getting caught. The hackers tried to blackmail the company and many users and then released all their details in a massive data leak when users did not meet their demands. As a result, families broke up; and the scandal ruined reputations and even lives in the aftermath.

The consequences of infidelity continue to have a devastating impact on individuals, partners, children and society. Yet, it remains a prevalent issue in every country and culture. Maybe even more so today with the advent of technology.

Given the massive changes that we have gone through in the past 30 years, I am interested in finding out the prevalence rates of cheating, if our attitudes towards infidelity have changed, and if there is anything that we can do about it.

What is Cheating?

The definition of cheating depends on who you talk to and their expectations for their relationship. The stereotype is that males tend to perceive cheating as exclusive to physical encounters or actions. In contrast, females also see emotional infidelity as cheating. Emotional cheating is sharing something with someone you wouldn’t say to your partner. Many people also believe that relationships that exist purely over the internet or phone are also cheating, especially if you share explicit words, photos, or sexual acts on these devices.

Weeks, Gambescia and Jenkins (2003) define infidelity as a violation of emotional or sexual exclusivity. The boundaries of exclusivity are different in each couple, and sometimes these boundaries are explicitly stated, but they are usually merely assumed. Because each partner can have different assumed limits, it is difficult for all exclusivity expectations to be met (Barta & Kiene, 2005).

Leeker and Carlozzi (2012) believe that when someone has a subjective feeling that their partner has violated the rules around infidelity, sexual jealousy and rivalry naturally arise. If an act of adultery has occurred, the consequence is often psychological damage, including feelings of betrayal and anger, impaired self-image for the person cheated on, and a loss of personal and sexual confidence (Leeker & Carlozzi, 2012).

Prevalence of Infidelity

Most of the research presented in this post comes from the surprising and entertaining book ‘Modern Romance’ by Aziz Anzari (the actor and comedian) and Eric Klinenberg (a Sociologist).

Unfortunately, people who are suspicious of infidelity sometimes have a reason to be. More than half of all men (60%) and women (53%) confess to having tried to mate-poach before. Mate-poaching means that they attempted to seduce a person out of a committed relationship to be with them instead. I can’t believe that these figures are so high.

I also can’t believe that in “committed relationships”, where the partners are not married to each other, the incidence rate of cheating is as high as 70%.

It gets a little bit better for married couples, with only 2–4% of married individuals admitting to having an extramarital affair over the past year in the USA. However, this increases to 30% of heterosexual men and 25% of heterosexual women who will have at least one extramarital affair at some point during their marriage. It’s scary to think that nearly one-third of all married individuals have affairs. However, it’s good to know that two-thirds of all married people stay faithful to their spouse.

Attitudes Towards Extramarital Affairs

In ‘Modern Romance’, an international study examines people’s views on extramarital affairs across 40 countries.

84% of people strongly agreed that cheating was “morally unacceptable” in the USA. In Australia, 79% view extramarital affairs as morally unacceptable. Canada, the UK, South America and African countries all have similar rates of cheating disapproval as Australia. Areas with the highest disapproval rates are typically Islamic countries, with 93% of those surveyed in Turkey stating that marital infidelity is morally unacceptable, second only to Palestinian territories with 94%.

France is the most tolerant country for extramarital affairs, with only 47% saying that cheating is unacceptable. Unsurprisingly, they also happen to be the country with the most extramarital affairs. The latest data indicates that 55% of men and 32% of French married women admit to having committed infidelity on their spouse at least once. The second most tolerant nation is Germany, with 60% finding extramarital affairs morally unacceptable. Italy and Spain are equal third, with 64% each.

Expectations vs Reality

When you compare the level of disapproval towards infidelity with the data on the actual prevalence of extramarital affairs, the numbers don’t quite add up. Furthermore, many people who cheat themselves still condemn the practice and would not be okay with being cheated on themselves.

A Gallup poll on cheating found that disapproval of infidelity is higher than animal cloning, suicide and even polygamy. Although it is against the law, being married to two people is seen as less offensive than being married to one and breaching the honesty, trust and connection that you share with your partner.

People also differ between their beliefs and practices regarding whether or not to confess infidelity.

A Match.com US survey found that 80% of men and 76% of women would prefer their partner to “confess their mistake… and suffer the consequences” rather than “take their secret to the grave”. However, the excuse given by most people who have cheated and haven’t told their partner is that they didn’t want to hurt their partner. Interestingly, they only worry about their actions’ impact on their partner after the unfaithful act has already occurred and not beforehand.

Unfortunately, most people try to keep their affairs to themselves and make excuses for their behaviour while demanding at the same time that their partners own up to their indiscretions if they stray. If their partner does own up, they are likely to treat them harshly for it, because, after all, cheating is considered morally unacceptable by most.

Why Do People Cheat?

Dr Selterman from the University of Maryland looked into why 562 adults cheated while in a “committed” romantic relationship. He found eight main reasons given for why the infidelity occurred:

  1. Anger: seeking revenge following a perceived betrayal
  2. Lack of love: falling “out of love” with a partner, or not enough passion or interest in the partner anymore
  3. Neglect: not receiving enough attention, respect or love (#1 reason for women)
  4. Esteem: seeking to boost one’s sense of self-worth by being desired by or having sex with multiple partners
  5. Sexual desire: not wanting sex with their partner or wanting to have sex more with others (a common reason for men)
  6. Low commitment: Not clearly defining the relationship as exclusive or not wanting a future with their partner or anything too serious
  7. Variety: Want to have more sexual partners or experiences in their lifetime (a common reason for men)
  8. Situation: Being in an unusual scenario, such as under high stress, under the influence of alcohol or a substance, or on vacation or a working holiday (a common reason for men)

Interestingly, these factors suggest that infidelity doesn’t always reflect how happy or healthy a relationship is. Instead, it says more about the person who commits adultery and their personality rather than anything else.

Ways to Reduce the Likelihood of Infidelity

In ‘Modern Romance’, the authors explain that passionate love inevitably fades within every relationship. A loss of passionate love could lead to infidelity if people don’t realise that this may indicate how long they have been together, not an issue with their relationship.

Companionate love, or that sense of building a life and a legacy with a partner, is different to passionate love. It can continue to grow across a relationship and a lifetime rather than decline with time. Couples in their 60s and 70s often rate their relationship satisfaction as much better than when they were younger and trying to raise children together and work full-time.

One way to reduce the likelihood of committing infidelity is to build companionate love and a shared life and legacy together, rather than equating real love with passion.

In his classic book ‘On Love’, philosopher Alain de Botton said that:

“Perhaps the easiest people to fall in love with are those about whom we know nothing…we fall in love because we long to escape from ourselves with someone as beautiful, intelligent and witty as we are ugly, stupid and dull.”

Alain de Botton

It’s much easier to idealise or become infatuated with someone you don’t know well. Because you can imagine that they are perfect or have none of the flaws that your current partner (or you) possess.

The quickest cure for infatuation is to get to know the person a bit more (without breaching the infidelity norms of your relationship) and realise that they are just as flawed as the rest of us. Once you understand this, leaving one flawed relationship for another and having to start all over again carries much less appeal.

In another of his excellent books, ‘The Course of Love’, de Botton states:

“When we run up against the reasonable limits of our lovers’ capacity for understanding, we musn’t blame them for dereliction. They were not tragically inept. They couldn’t fully fathom who we were — and we could do no better. No one properly gets, or can fully sympathize with anyone else… there cannot be better options out there. Everyone is always impossible.”

Alain de Botton

de Botton is not saying that we shouldn’t leave abusive and neglectful partners. He means that we need to avoid imagining that there is “a lover (out there) who will anticipate (all) our needs, read our hearts, act selflessly and (always) make everything better. (This) is a blueprint for disaster.” No one is perfect. Try to be grateful for what you have with your current relationship. Trying to make your current relationship as good as possible is much healthier than imagining that “the one” could be around the corner.

We still have the issue of love and sexual desire typically being separated in our society. Esther Perel, couples therapist and author, points this out better than anyone in her groundbreaking book ‘Mating in Captivity: Reconciling the Erotic and the Domestic’:

“Today, we turn to one person to provide what an entire village once did: a sense of grounding, meaning, and continuity. At the same time, we expect our committed relationships to be romantic as well as emotionally and sexually fulfilling… our need for togetherness exists alongside our need for separateness… (but) it’s hard to feel attracted to someone who has abandoned (their) sense of autonomy… Is it any wonder that so many relationships crumble under the weight of it all?”

Esther Perel

A way to keep the spark of desire alive is to ensure that even though you do many things with your partner, you must also do some things individually.

Perel also agrees that both love and desire can be maintained or grown over time with effort and a specific way of looking at things:

“For [erotically intelligent couples], love is a vessel that contains both security and adventure, and commitment offers one of the great luxuries of life: time. Marriage is not the end of romance, it is the beginning. They know that they have years in which to deepen their connection, to experiment, to regress, and even to fail. They see their relationship as something alive and ongoing, not a fait accompli. It’s a story that they are writing together, one with many chapters, and neither partner knows how it will end. There’s always a place they haven’t gone yet, always something about the other still to be discovered.”

Esther Perel

What About If Infidelity Has Already Occurred?

If cheating has already taken place, many people say that too much pain has occurred, trust has been breached and broken, and leaving is the best thing to do. However, breaking up may not be the most straightforward, practical, or best solution in other cases. For individuals in these cases, I would recommend reading Perel’s more recent book ‘The State of Affairs: Rethinking Infidelity’.

In this book, Perel says that:

“Once divorce carried all the stigma. Now, choosing to stay when you can leave is the new shame.”

Perel warns against only judging the cheating, as this closes all further conversation about what happened and why. It also makes it hard to know where to go from there. Instead, Perel believes that it is much better to see an affair as a symptom of a troubled relationship or a troubled person.

If the person is troubled, and they are remorseful for what they have done and willing to try to make amends and not cheat again, they must get help to address whatever issue led to the infidelity in the first place. But, on the other hand, be wary if they are unwilling to get help and work on themselves but merely say it won’t happen again.

If it is the relationship that was in trouble, relationship counselling may help too. Perel says that:

“Infidelity hurts. But when we grant it a special status in the hierarchy of marital misdemeanors, we risk allowing it to overshadow the egregious behaviors that may have preceded it or even led to it.”

If both people in a relationship can take ownership of the behaviours they engaged in that caused pain and hurt to the other and are willing to start again to build a stronger relationship, they can have a healthy relationship in the future. It’s just never going to be the same as things were before the infidelity took place.

My Personal Opinion

Monogamy is sometimes challenging, but it is a choiceSo is continuing to work at having a healthy relationship. We may not always have complete control over what we initially think or feel, but we do have the capacity to consider things properly before acting.

Relationship researcher John Gottman found that couples who turn towards each other when there is an issue in their life are much more likely to stay together. Couples who turn away from each other or turn against each other when fighting are more likely to break up.

One study found that newlyweds who remained married six years later turned towards each other 86% of the time when issues arose. Newlyweds who were divorced six years later only turned towards each other 33% of the time. Turning towards your partner when a problem occurs is the key to a close and connected relationship and is much less likely to result in infidelity or breaking up.

For me, it comes down to personal values. I want to have a close and connected relationship with openness, honesty, and trust. I don’t want to feel like I have to hide anything, and I don’t want to do anything that I am not personally okay with or that I know would hurt those I care about the most.

Anything that we hide from our partners tends to lead to greater distance and a feeling of disconnection. Especially with stuff we feel ashamed of or know is dishonest or disrespectful. Our body language, micro-expressions and tone of voice also tend to reveal how we genuinely feel over time if we hide something, even if we wouldn’t like to admit it.

Existential philosophers believe that our biggest challenge in life is to come face-to-face with the true nature of who we are. Over time, our actions rather than our intentions become our character or who we are. I aim to be the best partner and person that I can be and learn from any mistakes that I make along the way so that I hopefully never repeat them. What about you?

Dr Damon Ashworth

Clinical Psychologist

Published by Dr Damon Ashworth

I am a Clinical Psychologist. I completed a Doctoral degree in Clinical Psychology at Monash University and a Bachelor of Behavioural Sciences and a Bachelor of Psychological Sciences with Honours at La Trobe University. I am passionate about the field of Psychology, and apply the latest empirical findings to best help individuals meet their psychological and emotional needs.

85 thoughts on “Why Do Some People Cheat in Relationships and Others Remain Faithful?

  1. This thought-provoking post challenges our assumptions about fidelity. Instead of condemning cheating outright, it dives into the complexities of love, desire, and cultural expectations. A refreshing perspective that sparks conversation!

    Liked by 1 person

  2. I completely agree with the writer’s opinion. It’s nonsensical to blame monotony or the idea that we’re different people every day as justification for cheating. Each of us has the agency to choose honesty and respect in our relationships, regardless of the challenges we face. Cheating only undermines trust and hurts both parties involved. Instead, we should embrace personal growth and communication to nurture fulfilling and enduring connections.

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