Hi Vintagerebel,
Welcome to the family!
Oh, I'm sorry to hear all you have endured. It sounds like the past two years have been particularly painful ones. It is hard because sometimes people can go back and forth in their commitments to make change!
You ask about success so I want to point you to the top of the board to the
Success Stories:
https://bpdfamily.com/message_board/index.php?topic=113820.0It sounds like it would also be helpful for you to read up more on BPD so that you can have a better understanding of the behaviors and possible responses to them. If you study the tools here you may find that, whatever happens in the long run, you will be more at peace about the relationship. I know that this site helped me feel this way after a few months of careful reading and review and letting this all sink in.
Please keep posting and let us know if you have other questions for the community!

Wishing you peace.