Why people cheat: The psychology of infidelity

What are the true motivations of people who cheat, and why do even happy spouses do it?

We all know what infidelity is, but a universal definition is difficult to carve out—especially in the digital age. Is watching porn cheating, or is it only cheating if the person on the other side of the screen is live? Each scenario is subjective, but psychotherapist Esther Perel crystalizes the three elements that lie at the heart of all cheating: secrecy, sexual alchemy, and emotion—even if the person don't think so. Cheating is typically interpreted as a symptom of a bad relationship or of something lacking in a partner, however one of the biggest revelations for Perel in researching her latest book, The State of Affairs, was that happy people also stray. Even people in satisfying relationships find themselves crossing the line they never thought they would. So what gives? "They often stray not because they want to find another person but because they want to reconnect with a different version of themselves," she says. "It isn’t so much that they want to leave the person that they are with as much as sometimes they want to leave the person that they have themselves become." Esther Perel is the author of The State of Affairs: Rethinking Infidelity. See more at estherperel.com.

The key to a happy relationship? Understanding why you fight

Why do people have the same fights, over and over again? That's the repetition compulsion, a deeply ingrained psychological phenomenon—but not so deep that it can't be beaten.

Sigmund Freud initially thought humans operated on the 'pleasure principle'—that we run toward pleasure and run away from pain. However, this didn't quite align with what he saw in his office. There, he worked with people who escaped abusive relationships only to end up in a new relationship with the same dangerous dynamic. Many of us have the same fight with a coworker or a loved one, in different forms, over and over again. This led Freud to a turning point in his theory: he dubbed this phenomenon the repetition compulsion, a psychological trap where we repeat the same dysfunctional behavior or fall into the same traumatic circumstances, over and over again. In the video above, Harvard professor Dan Shapiro explains that there is a way to break this cycle of dysfunction and have healthier relationships. It's not easy, but it's worth doing to live a happier and less stressful life. As Sam Harris describes in his book, Waking Up: "My mind begins to seem like a video game: I can either play it intelligently, learning more in each round, or I can be killed in the same spot by the same monster, again and again." Understanding the way that you fight, and what your conflict triggers are, will stop you living the same destructive patterns on a loop. Dan Shapiro's latest book is Negotiating the Nonnegotiable: How to Resolve Your Most Emotionally Charged Conflicts.

5 philosophers whose advice could make or break your relationship

Romantic advice from some of humanity's biggest thinkers. 

Still from Baz Luhrmann's 1996 film "Romeo + Juliet"
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