Tila Tequila

how to get a girl to like you but has a bf who she doesnt like but loves & you have a long history with her?

okay so im in 10th grade and ive known this girl for 4 years and we use to love eachother but for the past 2 years shes had a bf and every time we get into deep conversations about(us and our history) she will say i like you but i love him. and she always says she misses us and everytime we get like this shell back off for like a day and then ittl start over what do i do