Of all the issues that bring couples into therapy, cheating seems to be in the top five. Despite the frequency with which it happens, it seems that relationships are not prepared to respond when it does. Contributing to this lack of preparedness is the widely held belief that "It could not happen to us." What is going on here? Is this a case of simple denial that we have the tendency to stray, or is there an element of human sexuality and relationship that we don't know enough about?

No one will argue that cheating destroys trust. Less subject to agreement is what exactly constitutes cheating. Defining it is not so simple, because to do so requires taking into account culture, generational trends, gender, value systems, and more. Cheating is not just the act of having sex with someone outside your relationship; the parameters change all the time, so the definition is fluid. But despite evolving mores and influences, there are consistent qualities running underneath all the definitions that can help us to make choices about what works for our relationships.

Let's take a look at what those consistencies are, whether cheating can be prevented, and if a relationship can be repaired once cheating occurs. But first I want to explore why there is so much confusion around cheating, and how to lessen that.

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