lol, any woman who would buy such a lame line is pretty pathetic. "you're my love but not in physical contact" Way to go romeo. NOT!!! Insecurity is a hard one to deal with. How he can get over his insecurity is by being completely present in each moment. He should read "The Power of Now" by Eckhart Tolle
It's long past time to let this one go. He's paranoid because he himself isn't trustworthy. We all get that from the little bit of info you provided...so I suspect there are a lot more clues if you think about it.
From head girl to mistress I think you just got demoted in your relationship. ....No offense intended <3
Appareantly he loves this person but they haven't been physical yet soooo I'd take that as he may cheat in the future with this person
I'd leave, sounds like he's gonna cheat.
I was going to say that I foresee cheating in the near future.
ahh he dont really fancy you maybe?