Ok...So I just started dating this guy..and it's great. I told him that in the past I had cheated on a boyfriend and it was all cool...no big deal. But when his friend Justin found out, he tried in every way to find out a way I'd cheat on Shane and in the end...he talked to my moms ex bf. Justin eventually came to believe that I was actually dating this 36 year old man. I'M 16!!! Shane and I broke up for a few days because he was so convinced that Justin was telling the truth....but ... NO! Shane and I are great now...he believes me and most of his friends do too....except Justin. This really bothers me because Justin and I were pretty cool before he came up with this funny concoction. I really still think Justin is really cool but he wants nothing to do with me. I know he's only looking out for his buddy but I didn't do anything and I don't know how to convince him that just because I've cheated before doesn't mean I will with Shane...and not with a 36 year old!