i'm with the other posters who suggested focusing on your well being rather than getting your revenge on this guy (really, doing that could just make him feel all the more arrogant that he threw you for such a loop). my suggestion: a 4-ft tall cardboard cutout of a guy with his hand held out like at Disney World and a word bubble: "You must be this tall to date me."
then put it in your room somewhere and laugh everytime you see it and think, "He so didn't deserve me."
And it wasn't a waste of time, b/c otherwise you would just have to go through it with a similar guy later, and in your 30s that's the kind of stuff that gives you forehead wrinkles. Better to get it out of the way now.