I guess more fixing is necessary.

I'm not interested in debating whether you fixed her BPD because that is a very complex question and I'm not sure I know enough to contribute.

The main problem I see now is that if you want this relationship then it needs fixing.

It seems she has done some terrible things to you. There needs to be a way to move beyond that. You need to forgive and she needs to feel forgiven. Even if you have forgiven, more may need to be done to make her feel okay. You can't have a healthy relationship if she feels guilt about all the shit she has done.

Also, she needs to feel safe. You threatened her with divorce. No, you didn't hold a gun up to her head to make her change, but still, that was a big deal. It may have been the best thing you could have done, better than just destroying yourself in a relationship with her or just leaving. So I am not saying you deserve any blame, but she needs to be able to feel safe in this relationship. It seems regarding physical and financial circumstances you're at a point where you could divorce and find another better partner. If you're still committed to her she needs to know.

Unfortunately you don't get any big reward for doing this big thing to help another person. It seems she really needed that help, and you motivated her to get it. But there is nothing in it for you than the opportunity to have a future relationship with her in a better state. She can't somehow otherwise repay this debt and all you can really do is move on.

Maybe she's a very different person now? Maybe aspects of what attracted you to her have been reduced now that she is better? But I think after all that, this relationship deserves a chance.

I feel like I may be talking too much about what she needs. But really, my main message is that the relationship needs fixing now if you want it to continue and hopefully be good in the future.