Is she leading me on?

Well I like a girl a lot at school. For the past month we have been really close, it started with holding hands, to hugs, to her laying down on me at the park. Well in the middle of all that she started dating a boy, but I t only lasted for a week. During that week, there was no closeness. After they broke up, the closeness started again. all that physical affection. I wanted to go out with her. To start things off, I asked her to the prom. She was happy when I asked her. Its months until prom, but I did not want to wait. Now I wanted to pop the big question on saturday after a performance of hers. But now, she got back with her ex-boyfriend. She has all the affection, and has not really been talking to me. Should I still take her to the prom??? Is she leading me on???

your just her back up 'boyfriend' if she likeed you she wud b going out wit her
but there is an attraction between you guys