Make her realize there is no1 in the world who can love her the way you do ....talk to her clearly.... If shez still not ready to come on right path ...leave her on her own
Talking to her, if she don't want to hear that, it cannot be helped cause not everyone able to understand with words itself. Maybe she need experience by herself (neglected by other cause she is bad).
Sit down and talk to her. Tell her that what she doing is not right, and if she can't accept that - walk away. You don't have to waste your time on someone who doesn't care on how she's effecting you emotionally.
Sometimes it takes a life time to realize what you have/had. You cannot help, they need to realize them selves. Point them in the right direction and let them be, all it is, is negativity.
