Everyone else is going to be all "THAT'S NOT TRUE!"
And they're right.
Not all men cheat, but all men are vulnerable to seduction in a way that women just can't grasp because men and women operate differently when it comes to deciding who to have sex with.
Colour-Scientist said:
mentally incapable of keeping it in their pants.
It's nothing to do with what our head says. Ever heard people joke about how men have a second brain down there? Yeah, that's the one that primarily controls who we're attracted to, and it can sometimes completely overpower the one in our heads, making us do retarded shit which in immediate hindsight we wonder why on Earth we did.
To put it another way: women have to
think themselves into being attracted to a guy, which is why a woman can say she wants to have sex with him because of his money (and everything that that money means), or character, or whatever and
mean it. It's why women fantasize while men watch porn. Men don't get the opportunity to think. As reasonable and level-headed and full of conviction that we might be, all to often we start shooting firecrackers at eachother to try and get a girl's attention. Why on
Earth did President Clinton cheat?
This imbalance causes some resentment towards women, but it's best illustrated by the exasperated blame-game some men turn to when they've been caught: they'll often blame the woman they're cheating with.
To clarify: Not all men cheat, but men are easily seduced.
Seeing as your friend and many other women (kiss-and-tell) explicitly go after taken men, I wouldn't blame them.