I'm not sure whats going on in his head, it could be innocent or he could have a girlfriend. I think you have done the right thing. Let him come to you. If he doesn't then you'll know he's an ass. you gave him the opportunity to let you know what was happening now it's his turn.
I would say though that if he gets in touch in the next few weeks, play it cool. Don't jump at the chance to see him as he may only be after one thing. then maybe sit down and talk to him about where things are going. tell him you don't want to spoil things but you need to know where you stand. it's only fair. you are not his toy.
If he doesn't contact you again try to move on. All women can cope on their own, men are not necessary for happiness. I found through experience that we need to spend time single and happy to find who we are and then we can be happy in relationships.