There's this guy I like. At the beginning he seemed to like me back, but as soon as I started showing some interest, he backed off. I pursued him quite agressively until last Saturday night, after some wine and beer, he "surrendered", LOL

. We hooked up that night/morning, and he acted really affectionate and tender, sweet even, but kept drinking. We ended up at his place and the sex was fabulous - like nothing I'd ever experienced before. AND he kept up his tender, sweet attitude. AND he talked about the things we'd do the next time...
I left to go home and sleep and left him alone for a while. He never tried to get back to me, but on Tuesday I texted him to say I'd had a great time and ask whether we could do it again. He never bothered to reply...
I can't help not to wonder whether he regrets sleeping with me - or whether he changed his mind once he sobered up. He's a bit strange, people think he appears shy, I certainly know he was NOT shy in bed, but he WAS drunk...
We're bound to meet again this Saturday night, as we're part of the same group that hangs out together, but I've no idea how to treat him or what to say. Let me add I'm only after NSA fun, but still... with sex being THAT good, I can't be satisfied with a one-night-stand either...
WHAT am I missing here?