They cheated on you before so they will cheat on you again right? They have cheated on past partners so what will stop them from doing the same to you? I mean once a cheater always a cheater...or maybe not. Society loves to say "nobody is perfect" but if you dare make a mistake many will try to define you by that mistake for the rest of your life. Why should they believe otherwise. In the eyes of many, cheating is ingrained in the DNA of men.