I need help with my ex bf/ friend!!...please i beg you!

well i really need help. i went out with this guy twice already after him asking me out i think 5 times(i knoe he has issues or he really likes me). the last time i went out with him i broke up with him again becuz nothing felt rite altho his friends told me he was happier than they had ever seen him. I talked to him and he told me he hasn't gotten over me since the first break up which was in october(LONG TIME!!). he told me that he probably won't stop liking me and I REALLY want him to move on. We were great friends for a while and now that we're broken up he still acts like my friend and flirts with me. i mean I flirt with OTHER guys too but it really hurts him. he won't say anything to me but I can see it in his facial expression plus the fact tht one of his best friends talks to me A LOT!
But seriously I dnt knoe wat to do...how do i get him to move on from me...I've already tried the be a b-i-t-c-h thing and he just likes me more...its so ARGHH!!!

HELP!! PLEASE!!!!!!!!!!!!

hey, well ive kinda been in this situation! but i never knew that my ex (now my best mate) loved me, until he told me. But i had moved on, and all you need to do is just say, i think were better being mates, and talking from experiance.. it does EVENTUALLY work. dont act a b-i-t-c-h anymore, then you'll lose him as a mate too!!
Hope ive helped
Hayley-Ree xxx