I think there was a similar thread on this topic a few months ago, but here goes. My friend broke off her engagement for the 3rd time. She finally confessed to her FI that there were other men. He called one of them up and the guys told him "I smashed your girl while she was wearing the ring." Horrible.
At first I was afraid for my friend because they live together, and I watch a lot of crazy things on TV. But, she started shifting the blame on him, which annoyed me, being that I know the whole story (at least what she tells me).
This whole situation gets me thinking, though. FI has not given me any reason to doubt him. But, at one point my friend was happy. I'm sure her FI did not imagine there was someone else in the pic, let alone 3 other individuals. It just makes me think, what if?
And I think... why do people cheat? In my friends case, she was not happy for months. She did not want to be engaged. She wanted her cake, and she waned to eat it too. If you are so unhappy, why cheat??? And maybe I'm wrong about this, but why tell your partner that you cheated if you know for a fact that you are leaving them??
I realize their situation is not my business but I cant help and think of it in personal terms. I could not imagine putting FI through that crap, and vice versa. Why do people do it? If you aren't happy, why not leave your partner?? It just makes me wonder, what makes people cheat??