NEED help about a cancerian guy and how he feels

I have been non stop thinking about a cancer guy who I was seeing for 2 months at the beggining of the year. He was the first guy that I had an 'emotional attachment' with after a 12yr relationship with my ex.
While we were together I felt as if I needed to experience other men and stupidly told him and was honest and open about kissing other guys, not knowing that this would hurt him. As soon as I ended things with him, I realised that I really liked him and no other guy can compare. I have apologised for being mean to him and sometimes he admits that I was horrible and other times he denies it saying I was just calling it how it was. I have told him that I do like him but he says that he sees me as just a friend. He has kissed a girl in front of me since. I do feel as if he does like me tho, by just the way he acts around me, but he's holding back for some reason. I do really like him. How do I win him back? Do I tell him straight again about how I feel? Or do I give him space and let him come to me, although I act very cool around him and we're running out of time as he leaves the country in Dec.