Thanks for the response. I didn't cheat, no. She did (and had on many other boyfriends) if that means anything. I think the fear of cheating stemmed from normal everyday thoughts of "dang, that chick is hot" which my OCD then twisted into making me think I was going to cheat on GF cause obviously I didn't love her if I found other people attractive

Not sure about the fear of abandonment... My main issue I believe is that I have a fear of abandoning others I think; again, that I wont love them, aren't capable of it, won't be able to commit, the things that come with ROCD I suppose.
I learned quickly to stay away from pot lol does me no good.