OK, guess I'll be the first devil to admit to it...I've done it to one boyfriend. It was a kiss and not sex, but I still felt like a total weasel for months afterwards until I couldn't take it anymore so I confessed. (I know it was
just a kiss, but the boyfriend in question was so paranoid about me cheating anyway since we were at different schools that it just killed me.) We didn't break up, which I was glad of at the time but now I sort of wonder...was he really that forgiving or was he guilty of the same and just didn't admit to it?
