I dont know what to do. Advice or commentary?

Ahhhh, I'm sorry. You both need closure. I went through something vaguely similar, but I won't get into it. This past week he finally contacted me, and we arranged to talk at school in counseling office, without the counselors though. I had been over him for well over a year, but I care enough about him to give him the help he needed. Which was closure. I think that you two should probably talk, in person, about what happened. Not to try to get back together, just to understand. It is a good idea to let your boyfriend know a little about what's going on, although don't add you were in love with your ex-bestfriend. He'll appreciate it and trust you more. I think closure is your best option, because if your story is similar to mine, than any chance of a relationship is gone, but jealousy may persist for him. It doesn't for me, but he'd glare at my current boyfriend for a while. Good luck!