Replying to This girl...

so theres this girl that i have liked for awhile now and when i say awhile i mean it and i dont really know wtfs going on.. She always goes to partys and hooks up with random dudes and like says it wont happen again blah blah. but then she does and im just like wtf gay. i mean im the nicest person in the world to her i see her everyday i do anything she wants me to do for her , go to her soccer games in the fucking freezing cold when theyre team sucks man dick and she still doesnt even show acknowledgement for me. I know most girls would respect this kind of attitude from a male but not her towards me for some reason? ive literally done everything right but just cant get it ns... what the fuck do i do