I have and to this day, I have very serious trust issues. It really devastated me. I made a promise to myself that I would never hurt the person I love the way I've been hurt.
I never cheated on anyone but did sleep with a married man before his wife was in jail so it doesn't count if she wanted to keep her man she would have obeyed the laws.
I've never cheated but I've made out with girls who have boyfriends. It's just that I'm irresistible. Like Carly says "This Kiss, is something I can't resist"