She's on hard drugs, she's not that person you're thinking of anymore, if she ever was. People on drugs like that will say or do anything, there's no meaning to it such that it should hurt you deeply. I'm sorry. But you really can't do anything for her anymore she needs rehab and the will to save herself. You need to take care of yourself now and go on with your life without her.

It's normal to lift up the person you love unrealistically, but that's a fantasy. Loves that work out and last have to be grounded in reality. It takes time to heal from wounds like this. Focus on other things in your life instead of wishing for what you can't have, which is of no good for you to do. Be good to yourself.