Sleeping with a married man, who's at fault?

The man is the one in the marriage,but if your knowingly sleeping with a married man, I believe that Karma is a bitch! 

Both are at fault and both deserve to rot in the deepest pit of hell Cheating on the person you're supposed to love is disgusting and no one should go to bed at night wondering why they aren't good enough. Cheaters are disgraceful and disgusting Soznotsoz

They are both at fault, and yes I agree the man is the one who made the vow, but anyone male or female who knowing sleeps with someone who is taken is a shitty person. I do know what you mean about people being mad at the women in the situation you describe above and it's stupid to not be mad at your SO, but just be mad at the person who they cheated with. It's both though. Not being the married one doesn't mean what you did wasn't wrong. 

Unless the woman was unaware thst he was married, its both of their fault.

I say both but I tend to judge the married person a little harsher. Married women cheat just as married men do. A home wrecker, if they know that's what they're doing (that the other person is married), is just as bad. 

Takes 2 to tango...but if u both know ur both equal sleeze bags.