What should I do about this girl?

Ok I'm going to say this bluntly you shallow. your willing to dump a girl 3 days! before prom just because she isn't pretty did you ever hear its whats on the inside that counts. give her a chance she may not be pretty but you may have a really fun time with her you never know

Well I'm not an expert when it comes to not hurting people, I tend to do the opposite (not on purpose).
well if you 2 are just texting as friends then it shouldn't matter but if its anything else just tell her you met someone else. If you do that make sure she knows there is nothing wrong with her.
well let her know that anyways.
but don't use the "its not you , it me " line. Lol

Hmm. Such a problem.

I think you should wait until you do see her, don't tell her that you knew her before, and talk. Get to know each other, and if she's not for you, just tell her that you want to stay friends.
After that, maybe she will stay as friends, maybe she will be crushed, but tell her that you are not interested, but you find that she has a great personality, and you still want to keep in contact. A jerk would just tell her straight out he doesn't find her cute or hot, then walk away.

Good luck!

Us guys are visual. We humans have lust in our brains. Lust is what makes us feel really good around someone and like them. Personality may ruin that lust or make it stronger. In my case, I'm not a big fan of dating a girl who is "unattractive" and I sure as hell won't take a girl that's attractive but one real bitch. If the girl is average and has a great personality, then I would definitely take her to prom. If I have absolutely no attraction towards her appearance, I would personally not want to take her to prom. Unless I got paid twice what I paid for prom.

Just remember that it is your choice in choosing whether or not to go with her. The fact that she pressured you to go to prom with her before meeting her was a bit poor on her part. If your a good looking guy and she is the "unattractive" girl, then she may be using you to get higher social status (plus she may like you as well). Whatever the case, remember that someone will almost always get hurt when they are rejected by someone they like. If they are not hurt, then they could probably care less about whether they liked you or not.

Inside that counts? It does count but being human,we are greedy and we would like to have everything. Looks personality and brains. You don't have to go with the one you don't like, just tell her or make an excuse. Do it over where you communicate,texting right? That's a lot better since she doesn't want you to know who she is. And she doesn't know that you know who she is. That's a good situation for you.

I'm like u, no matter what I do, looks always comes first cause that's the type of human I am, personality and brains also counts and I won't date a girl without the 3 of these. Its hard to find but its worth your while. You don't have to force yourself in doing something you don't want to.