Monogamy isn't for everyone, society as a whole needs to accept this. There should be no pressure to marry because that's what you're supposed to do. With that said, if you do agree to be on a monogamous relation with someone, why be an asshole and cheat?
Or is the concept of "cheating" itself the problem?
If people didn't "cheat" from time to time you'd have a whole lot less people in the world.
Our main objective of being on this earth is to procreate, no?
Something to think about...
