How to cope with the loneliness after a party?

Heh, I'm probably not the best to give advice onthis. I, more or less, am bored by parties and am constantly looking at my watch. I'm just not good with tons and tons of people.

At any rate, maybe you can see if there is anyone after the party who wants to hang out some more. Also, I would, as others have mentioned, begin to appreciate time by yourself. Every person is different. Some of my friends like to be around people constantly while I can enjoy it for only so long before I need some alone time.

Mayhaps you might also try some online things like games, chat, etc. That way, you are still talking with people.

Oh, and I disagree with your "being alone = no friends". Take a step back and look at it through different eyes. If you are with your friends constantly (three or four times a week or such), then you definitely have friends.

Jam it back in, in the dark.