Im not really sure wut to do...

If the dance is tomorrow I wouldn't push your luck, she might have another date. If you tell he that you like her over myspace, she might think that you are joking and that would cause her to not respond. If you want to tell her that you like her do it in person. I personally hate it when people discuss emotions like these over the internet, because you have no idea if they are kidding around or not.

I've never had a girlfriend (likely to change in a week or two, but that's beside the point.) I never ask less than a week before a dance, it's just not common courtesy, and if I can't get the courage to ask by then, I don't deserve the chance. Depression is a bitch, I know it, I'm in one right now, but that's because the girl I'm in love with is planning on finishing this year of high school, finishing all requirements over the summer, then leaving for somewhere far off to dance, and leaving me alone for a while. I know she's going to come back sometime, (if she even manages this,) but it doesn't stop it from being depressing. You know, you should try being optimistic. There's no reason that you have any reason to be depressed yet, unless at least one of your family members died recently, or you're a concert pianist and all your fingers get crushed. Life's better than you think it is, honestly, but it's still not easy to keep from getting depressed over girls. Just ride it out, though.

And telling someone you like them on myspace? I did that, but only because she liked talking over email better anyway, and we had some deep conversation, too... but in the end, things like that need to be voiced out loud to matter. Trust me, I know. I would forgo asking her to this dance and just enjoy yourself there, then ask her in person the next time around. You think your clock's ticking fast, but it's really not.