I'm enamoured with a guy I may never see again.

[Don't know where else to put this. Also thought ages were a little bit irrelevant here.]

So there's a guy I met in a kind of annoyingly uncomfortable way. Nothing gross or risque, but just somewhere where we honestly could not hit it off or talk much. He had a really annoying and overly talkative acquaintance with him, and he and I were so derpy for each other that we just stared and stared without saying much of substance.

I don't even think I learned/remembered his name. That's how bad we were just incapacitated. So this hurts. It hurts that I may never see him again. I say 'may' because there is some chance he will come back to that same place (this is all vague on purpose), but I can't count on it.

It doesn't help that my friend who was there keeps reaffirming how much he obviously liked me. It makes my whole heart break to think that someone I had such a strange connection with may be gone just like that.

What do I do?

How do I get over it? Or at least how do I cool down until the time when/if I see him again?