First, consider she was as confused as you. She wanted to say no, and that was all she came up with. If not, and she was just being mean, here's what to do: Brush past her, looking past her, and nearly knocking her down. Then, as if just noting her, point to a space behind her, and ask, excuse me... Did you see a really hot chick off that way. I want to ask her to dance. Are you maybe one of her friends. Go on to describe a nonexistent but much hotter. Say things like, her breasts were bigger than yours. Do this until slapped or she walks away.

That's when you approach her friend or whatever girl is closest to her

next time, just walk right past her and go get a drink/ask someone else to dance/go to the bathroom/anything. don't just let her reject you. reject her rejecting you.

she saw your soul. like a lion she senses your fear. walk up with confidence young warrior. when you walk head up feeling good, ppl notice.