What should I do about this guy?

Ok...there's this guy. I really like him, and we have known each other for about 6 months. The problem is that he is not interested in a relationship right now (of course). He had a girlfriend when we first met, and he broke up with her about 2 months later. That's when we started to kind of see each other regularly, and of course I fell for him. The weird thing is that when we were together, he would treat me like he wanted a relationship. He would hold my hand, let me lay my head on his shoulder, and he even gave me a kiss (on the cheek, but still a kiss haha) After a few weeks of not knowing where I stood with him(and after dealing with my nagging friends who wanted to know whether or not we were going out), I just came out and asked whether or not he planned on taking it any further. Well, obviously the answer was no. I just couldn't understand why he had led me on, so I blamed his ignorance of knowing how much of a romantic I am and I moved on...well sort of. Now, we are friends and he said that he liked me a lot and maybe someday, we could be closer... Yeah, so this is my problem. Every time I hang out with him, my feelings increase (like now I am beginning to inwardly profess my love for him hahaha I can be a little dramatic), and the thought of him treating other girls the same as he treats me is kind of killing me. So, I need to know if it is reasonable for me to sit around with the hopes of him changing his mind (and the potential of getting my heart broken everyday he doesn't ask me out) or if i should just move on (which is hard for me because I don't exactly have guys chasing after me haha). Anyway, if your answer is move on, please give some advice as to how on earth i should do that...thanks! :)