I have a problem!

[Disilord]

As some of you may know, my high schools homecoming dance is in 2.5 weeks. The problem I have is that parents announced tonight that I have to go to California that weekend and I won't be able to attend the dance. I have planning to ask this girl out (not just for the dance) and now I am in a sticky situation. I found out today that another guy has the hots for my girl and is planning to ask her out soon but I want to ask her before he does except if I do, she will miss the dance which will make me feel bad. HALP! need expert advice.