I love him , he's about to date a girl , and i cant do anything to stop it kinda song

Okay so that guy and i are telling to everybody that we are datin' ( becuz i wanted to piss a boy i loved off , but i dont love him anymore.. ) and a girl came to me and said that she knows about our fake dating , and that he asked her out n stuff.. so i realized that i have feelings for him , but i cant do anything to stop them , i have to agree and see them datin..
Do u think u know a song that expresses this ? I mean something like , i cant do anything about this , and i shoud've asked him out sooner..
Please i need this song asap ! Thank u all <3

taylor swift has alot of songs basically about that

http://www.youtube.com/watch?v=93P47RXF2JY

http://www.youtube.com/watch?v=CjKUx2GItAo

another taylor swift <3 this one


or if you don't like that genera then tell me what ya like and i might still be able to help