She sounds like me when I'm manic or off my meds. I have BPD and bipolar type 2. I def agree that she probably has some abandonment issues and maybe low self esteem. It can be from trauma in her past that maybe she hasn't opened up to you about. Basing this on my own experience, it won't get better unless there is some sort of intervention with meds and/or therapy. Have you sat her down and discussed your concerns? What if this is how she is no matter what? Would you stick around? I can understand if you wouldn't. I know I can be unbearable at times and I'm often even embarrassed of my actions. However like I said, I only act out when I'm manic from a bad med combo or lack thereof. I think you need to express your concerns with her and maybe see if she's open to go to a psychiatrist with you so that you can tell them what's going on from your point of view. Good luck and I hope it gets better for you!

Dx: BP2, PTSD, bulimia/anorexia
Seroquel 300mgs
Trileptal 300mgs
Buspar 45mgs
Ativan 1mg PRN
Vyvance 70mgs PRN