Cheating on people is not cool. There is never a good reason for cheating on people. If you are not happy and need to cheat, leave the relationship and move on and save the additional pain that cheating will cause in the end. It's not worth it. And think about this, if he cheated on his wife when he met you how do you know he won't cheat on you? Same for the woman.
Today's Quote: "He'll cheat without scruple, who can without fear."
Benjamin Franklin
