The worst "cheating" I did was when I knew I was going to break up with a boyfriend, I had phone sex with a friend. I was quite promiscuous in my 20's, but never cheated on anybody per se. I had plenty of casual sex relationships. I was probably hypomanic a lot, but I have no regrets, really. Now that I'm married, I feel like all of those flings were meaningless compared to what I have now. I would NEVER cheat on my husband. <3