DEAR ABBY: I’ve only had one boyfriend. For most of my childhood, he was my best friend. When we were 14, I got scared we might fight, break up and never forgive each other, so I told him I wanted to go back to being just friends without explaining why. In retrospect, I know how stupid it was, but when I was 14 it made perfect sense. When I said it, he got angry, but more than angry he was very hurt. I never saw him again. My problem is, I haven’t been able to put myself in a relationship ...