Then keep doing what you've been doing then and let her call all the shots like you've been doing. If you want to wait (and in the meantime get friend-zoned ~ google "Ladder Theory") then wait. There is no magic solution that we can tell you that will make her want to go to bed with you or be in a grown-up bf/gf relationship with you. She will play with you in this manner that she does now as long as you keep letting her.
You're so "lost and hurt." In that case stop doing what you've always done while expecting different results. You ask "what does she want" My guess is she wants you to drive her and her friends around and keep getting all that positive attention from you with very little effort. You're not getting much in return for your investment, are you?
What do you think she wants, Op?