Daniela06---Read your whole post and just to sum it up, I think this guy is unsure of himself and also selfish.
Unsure - yo-yoing about, "I like you, but I don't want you just yet, but I don't want you to leave, but my heart's not in it totally..." etc etc
Selfish - Thinks from his perspective and is not being fair to you.

As for you, I see you posting about all your feelings for this guy and you're investing all this energy (emotions/thoughts) and time (seeing him/thinking of him & you) and bottom line is, you are not getting what you want.

You want him. He does not want you (at this point in time).

Just give it up.