Quoting May ♥:" Okay so me and SO dropped out of school like a year or so ago. I should be a junior in high school. And ... [snip!] ... like it might give me anxiety....But SO wants to go so bad. And homecoming is such a big deal where I am from.... Advice?"
I would go, but with a backup plan to leave in case anything goes down. I would talk to him and say something like "Okay, i'm willing to go and try to have fun with you, but if any drama goes down or if DD gets too smothered by people, we leave, deal?" That way, at least you're willing to try to do what he wants, and in return....he should respect what you want if it doesn't work out.