NEED GIRLS HELP!!! THIS GIRL IS MY LIFE?

ok obviously you really care about her. Just continue being a support system for her and continue showing her that you really care about her. It may take some time, but she will begin to see how much you really like her and once she realizes that her bf is hurting her more than anything, she will see that you truly were there for her the whole time through it all and she might end up dating you. it takes time! be patient. she will probably come around.