Why People Cheat In Relationships – 8 Reasons

Why do people cheat? Even people who are happy in their relationships can cheat.

Why People Cheat In Relationships – 8 Reasons

The general thinking about why people cheat on a committed relationship partner is that there is a problem with either the cheater or the relationship. Cheating usually comes from insecurity, neglect, routine broken trust, or the need for a defense mechanism. In some cases, it might come from a deeper rooted, biological place.

Cheating is probably the most awful thing you can do to some one in a relationship. If someone cheats, it is the end of the relationship, period.

Adrienne Borschuk

As anyone who’s ever been cheated on knows, learning that your spouse or significant other has strayed outside your relationship is a uniquely painful experience. In the midst of the teary talks and arguments that follow your discovery of the betrayal, you might never hear an actual reason. And you might not even see the signs. Here are eight reasons why people cheat, according to experts.


People sometimes cheat out of anger or a desire to get revenge.

Maybe you just discovered your partner cheated. You’re stunned and hurt. You might want to make your partner go through the same emotions so they really understand the pain they caused you.

In other words, “They hurt me, so now I’ll hurt them” is often the driving thought behind retaliatory infidelity.

Anger-motivated infidelity can happen for reasons other than revenge, though, including:

  • frustration in a relationship when your partner doesn’t seem to understand you or your needs
  • anger at a partner who isn’t around much
  • then anger when a partner doesn’t have much to give, physically or emotionally
  • and finally anger or frustration after an argument

Regardless of the underlying cause, anger can act as a powerful motivator to become intimate with someone else.

Why People Cheat In Relationships – 8 Reasons


The exhilarating feeling of falling in love with someone generally doesn’t last forever. When you first fall in love with someone, you might experience passion, excitement, and rushes of dopamine from simply getting a text from them.

But the intensity of these feelings usually fades over time. Sure, stable, lasting love exists. But those first-date butterflies will only take you so far.

Once the glitter fades, you might realize that the love just isn’t there. Or maybe you realize you’re in love with someone else.

Keep in mind that falling out of love doesn’t have to mean you don’t love each other.

This can make it harder to leave a relationship that still provides a sense of family, friendship, stability, and safety. But staying in a relationship without romantic love may lead to a desire to experience love again and motivate infidelity.


Simply having an opportunity to cheat can make infidelity more likely. This doesn’t mean everyone who has the opportunity to cheat will do so. Other factors often (but not always) add to the motivation to cheat.

Consider this scenario: You’re frustrated with the recent distance in your relationship and dealing with feelings of low self-esteem around your appearance. One day, a coworker you’ve become friendly with catches you alone and says, “I’m really attracted to you. Let’s get together sometime.”

Why People Cheat In Relationships – 8 Reasons

You might not choose to cheat if only one or two factors were involved. But this combination of motivating factors — the distance in your relationship, your feelings about your appearance, the attention of your coworker — can make infidelity more likely.

Potential scenarios

Certain situational factors can also make infidelity more likely, even in a strong, fulfilling relationship, including:

  • having a lot to drink and sleeping with someone after a night out
  • wanting physical comfort after a distressing event
  • living or working in an environment where there’s a lot of physical touch and emotional connection


People who have a hard time with commitment may be more likely to cheat in some cases. Plus, commitment doesn’t mean the same thing to everyone.

It’s possible for two people in a relationship to have very different ideas about the relationship’s status, such as whether it’s casual, exclusive, and so on.

Why People Cheat In Relationships – 8 Reasons

It’s also possible to really like someone and still fear making a commitment to them. In this case, one partner might end up cheating as a way of avoiding commitment, even if they actually would prefer to stay in the relationship.

Other reasons for commitment-related infidelity might include:

  • lack of interest in committing long-term
  • wanting a more casual relationship
  • wanting a way out of a relationship


Sometimes, one or both partner’s needs for intimacy go unmet in a relationship. Many people choose to stay in the relationship, often hoping things will improve, especially if the relationship is otherwise fulfilling.

But unmet needs can lead to frustration, which might worsen if the situation doesn’t improve. This can provide motivation to get those needs met elsewhere.

Unmet sexual needs might happen when:

  • partners have different sex drives
  • one partner can’t have sex or doesn’t have interest in sex
  • one or both partners often spend time away from home

Unmet emotional needs can also motivate infidelity. Emotional infidelity can be tricky to define, but it generally refers to a situation where someone invest a lot of emotional energy in someone besides their partner.

If your partner doesn’t seem interested in what you think, feel, or have to say, you might start sharing with someone who is interested. This can lead to an intimate connection that resembles a relationship.


Why People Cheat In Relationships – 8 Reasons

A simple desire to have sex can motivate some people to cheat. Other factors, including opportunity or unmet sexual needs, may also play a part in infidelity that’s motivated by desire.

But someone who wants to have sex might also look for opportunities to do so without any other motivators.

Even people who have sexually fulfilling relationships might still want to have more sex with other people. This might result from a high level of sexual desire, not necessarily any sexual or intimate issues in the relationship.


In the context of a relationship, the desire for variety often relates to sex. For example, someone might be interested in trying types of sex that their partner isn’t into, even if they’re otherwise well-matched with their partner.

Variety might also mean:

  • different conversations or styles of communication
  • different non-sexual activities
  • attraction to other people
  • relationships with other people in addition to their current partner

Attraction is another big part of variety. People can be attracted to many types of people, and that doesn’t necessarily stop just because you’re in a relationship. Some people in monogamous relationships might have a hard time not acting on those feelings of attraction.


Wanting a boost to self-esteem can also motivate infidelity.

Having sex with a new person can lead to positive feelings. You might feel empowered, attractive, confident, or successful. These feelings can build up your self-esteem.

Why People Cheat In Relationships – 8 Reasons

Many people who cheat because of self-esteem issues have loving, supportive partners who offer compassion and encouragement. But they might think, “They have to say that,” or “They just don’t want me to feel bad.”

Receiving admiration and approval from someone new, on the other hand, can seem different and exciting. It may seem more genuine to someone with low self-esteem, who might assume that the new person has no “relationship obligation” to lie or exaggerate.

Why People Cheat In Relationships – 8 Reasons

At the end of the day, the best way to guard against cheating in your relationship is by learning how to communicate honestly and openly with each other about what you need in order to feel fulfilled in this relationship. Discuss your pasts and any wounds that might be lurking beneath the surface. Talk about how you can come up with ways to keep your relationship exciting still. Think about how you can build each other up and make each other feel loved and desired.

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