You have to stop enabling her. If she is unable to listen about help/rehab then you may have to let her hit rock bottom. For some addicts, this is the only way they will seek help or be willing to accept it. I kinda went through the same with my ex. She IS bipolar 1 & 2. She never accepted treatment till our 3 year relationship went to hell, and I had to brake up with her. Sometimes it's best to cut all ties, as I did, to save yourself and that person.