Well, personally I think he's giving you mixed signals. His behavior serves to get your hopes up but may possibly let you down in the end.

I would protect my heart by pulling back a bit until he decides what he wants...but that's me. I know you enjoy the contact but that doesn't change the fact that he isn't willing to say, "Yeah, we are an item."

It reminds me of men who want to have sex...even a baby with their GF but won't marry her because they "aren't ready."

If you are young like I think you are then you would do well to make some boundaries and stick by them. Many folks out there come off nice but are only out for themselves. You need to set limitatons and expectations for yourself and stick to them so that in the heat of the moment you won't get taken advantage of.