Girl I like asks me to both prom and to homecoming does she like me?

I have known this girl since kindergarten and were in the same class and are now juniors. It has only been in the last year or so that we've become good friends. I really like her and this year she asked me to homecoming and now prom does she like me?she also tends to flirt with me but other than hat doesn't seem to interested also at all the other dances I've been to she's always asked me to dance with her if that males any difference.