We were together for a year. This is when I initially learned about bpd. The outbursts, the depression, breaking up with me here and there, I never took it serious. Then one day out of no where she broke up with me solidly. Said I was too good of a guy to keep hurting me. I told her I didn't care about it and I loved her and I would fight through anything to keep her and that I understood. She erased me from her life and next day was with someone else and I was left alone.. 

During our time off I studied. Learned everything I could about bpd. What I could do to help. What I needed to do for myself as well. And I fought my hardest to get her back. She deleted me on everything. Blocked, I sent her flowers to her job with notes, visited her, left her notes on her car. And eventually she unblocked my number and we started talkin again. I did everything I could to get her back and it worked. And then we moved in together.

Everything was perfect! We were lovey dovey, intimate, I told her no matter what I was hers and she loved that. We shared everything, secrets, thoughts, everything. I knew everything about her and what I needed to do and endure to keep her. The one night she goes out to a bar while I'm at work and doesn't come home. She says she didn't sleep. With the guy but idk. She says she's so sorry and everything and I understand. I tell her it's OK, and we move on. 3 months later it happens again. And again I tell her it's OK and we're fine again. 2 months later again. And I said it's OK. Again..

Now here we are, she broke up with me again, saying she needs to work on herself in order to be the woman That I deserve and that she can't keep hurting me again. And now she's already with someone else again. And I'm blocked on everything again.

Do I pursue her again? Or let it go this time? Can she really ever stop hurting me? If it's not me is she just gonna continue this behavior forever with other people? What should. I do? 