Why do men cheat, and why with usually uglier women?

Anonymous
I have been cheated on in a lot of my relationships. I am not cocky but I am a very attractive woman. However, men seem to always go astray why is that? do they just enjoy it?
Updates
+1 y
Ok I am going to be completely honest, my celebrity look a like is jennifer love hewitt, everyone tells me that and one of the girls celebrity look a like was fat amy from pitch perfect.
Why do men cheat, and why with usually uglier women?
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