I remember in other posts you mentioned that you were the one to approach the guy. Assuming you had approached this guy first, makes me think he was either slightly put off that you did that and/or not really interested in you. Some guys are put off by aggressive women. And some guys who are not interested, will do anything to avoid confrontation, and lead on a woman and then just disappoint her, rather than just being honest up front.

I'm not saying you did anything wrong. This is just my gut feeling about what happened from my experience.

Unless he comes back profusely apologizing to you with a great excuse, forget him. He wasn't right for you.