How should I have handled this situation?

[adpiucf]

You already know how you should have handled the situation.

If you like Boy A, you approach communication with him when sober. You don't go out and get sloppy drunk thinking it will lead to honest admission of feelings and a relationship. Nor do you make a display of hanging all over Boy B, thinking it will get Boy A's attention.

All you have done in this situation is to disrespect yourself.

And I, like others, find it ironic you would attend a church party and then go out, get wasted and have a one-night stand.

Chalk it up to a learning experience, and don't do it again. Boys don't fall in love with you for sharing your body with them over a drunk hookup. Any guy who is worth it will pursue you ... and pass the sobriety test-- that is, he shows interest in you when he's not drunk.

My best guess is that Boy A, the one you like, did not even notice you leaving with Boy B. Act responsibly in the future and move on. If you like Boy A, get to know him.