I understood exactly what you said, I just think that it is wrong. A man who is a cheater will always seek for something outside, not because it is vital or important to him but just because that's who he is.
That's why they usually have the same behavior, relationships after relationships.
I dunno how he was in his previous relationships and I think there's more reasons than just that for why people cheat. Anyways, agree to disagree I guess.
. There ARE actual decent people in this world. That's not excuse