While bad, I don't believe they are the worst. Pretty certain someone who goes around, say, murdering orphans is worse than a cheater.

Why is that downvoted?

Things worse than cheaters: Nazis Orphan murderers Cancer ISIS

When someone says something is "the worst" they're generally being hyperbolic and to take them literally is really silly. Y'all can't be that ridiculous, come on.

"There is only one sin, only one. And that is theft. Every other sin is a variation of theft... When you kill a man, you steal a life. You steal his wife's right to a husband, rob his children of a father. When you tell a lie, you steal someone's right to the truth. When you cheat, you steal the right to fairness."

Kite Runner! ^^

Love that book!

Of course it shouldn't happen! What, do you live in a world where cheating is okay?

Actually, yeah, we kinda do. And we learn it from a very young age from, well, everywhere. Is your S.O. not giving you what you want? Do you wish you had something more...intense? Then cheat. Hell, there's even websites dedicated to HELPING people cheat/have an affair.

Theres also websites and help documents on how to murder people, are we taught that as well? Actions that shitty can't be justified