If he liked you, and cared enough about you like the way you’re wishing he was. He wouldn’t be acting like this. He would be making the effort to see you more, shift plans for you, or even if he was really busy, at least a call at night to let you know he was thinking about you. I agree with @SpatzieLover. Waiting weeks and then simply texting you? That’s a bit insulting and insincere. You’re worth a phone call, you’re worth some time of active attention. For all you know he’s blasting off texts to multiple girls at once, and/or sitting on the can in the bathroom playing angry birds at the same time.
Even if there was a miscommunication about your availability, a good guy and friend wouldn’t immediately ditch out because you may be into someone else. That’s something someone would do when they realized you wouldn’t be easy prey; cutting losses. Even if he misunderstood you gave him the second chance by acting interested in reply to his recent text. He didn’t bite. I think you overestimate what he feels about you.
There’s really no purpose in letting him know that he “hurt you”. What good would that do you? It won’t really make you feel better, won’t make you feel less duped either. And certainly won’t help win him over either. Trying to theorize his motives is pointless, you can’t control his actions or anyone else’s besides your own. Even if on the offchance he really was interseted, but was extremely passive, and highly insecure about the whole thing, you should still avoid him. That’s bringing guaranteed baggage and drama in your life that you don’t need/want.
Through the course of your life you with find lots of people you’ll like. You don’t have to, nor should you seek a relationship with all of them. The person that wants to be in your life will make damn sure that you know it.