Girl dilema someone help!!!!?

first of all- WOW! lol. ok im 15 and have been in similar situations. I say you should get together at least for one date and if you keep asking her and she says she is busy everytime or avoids the question then forget about her because it seems like she is just using you when she doesnt have a boyfriend. So my advice is get together see how i works out and if it is ment to be it is ment to be but dont keep this on-off thing going on because you are getting to attached to this one girl and it is ruining your other relationships! good luck if you need more help just ask me! :)