What do you think is the reason that people cheat on one another? What is it that they think that cheating will accomplish? And why do we get so pissed when someone cheats on us?

When I think about this problem in my own life I would say that this issue creeps into my relationships when a lot of other stuff is already going wrong. My problem is about not wanting to fight about anything and the not fighting ensures that the problems with build up unresolved. I don't think that I have learned yet that fighting doesn't necessarily mean a bad relationship it is just that you have to fight fair with your partner. I am pretty sure that a fair fight can only happen with a referee.

So with the assumption that cheating is just a symptom can you identify a problem that is causing you to feel this insecurity?