How to get my ex back?

hi, i broke up with my ex 2 years ago after a 5 and a half month relationship. we were very young when we were together (i'm 23 now). after a few months being single, i realised i missed him and wanted him back. he told me this wasn't happening and that he wanted to be single. however, he continued to sleep with me and made me think things were going somewhere. every time i tried to discuss the opportunity of getting back together, it ended in arguments with me inevitably crying and feeling like s**t basically! he kept insisting on being friends, but nothing he did made me think he wanted to be friends. i still love him somewhere in my heard but i'm not in love with him anymore because of all the stuff he's done (i dont want to go into it all because i dont think i have enough characters in this box!) even though i'm not in love with him, i still miss him like hell and want to be more than friends with him even though he hasn't behaved in the best way possible. we lived together and he was my best boy friend and even though i've moved on and am doing things for myself and enjoying life, i still miss what i had with him and know i've changed and so has he and i think we could still make it work. he's insistent he doesnt want to be with me anymore. is all hope lost? please be gentle. even though its been 2 years since the breakup it still hurts