What I can do however is learn more about myself, why I allow myself to get into these types of relationships. If I learn this lesson then I can hopefully avoid the pain and find a partner that can provide the healthy mutually beneficial relationship I want.
True. And while I don't know if I'll ever know exactly WHY I get in these types of relationships (probably because I'm a romance addict and I love the love-bombing at the beginning and can't see literally anything beyond that -- and then there would be the question as to WHY THAT is ), what I have learned this time around (5 years later since my last intimate run-in with a pwBPD), is that I have gained an enormous amount of self-worth in that time.
6 years ago I let a pwBPD almost drive me to putting my car through a median (seriously, I was that distraught). 5 years ago I broke up with one, but then as soon as she accepted the break up, I chased after her for months! And actually got her back! And then she burned me x1000 after that!
This time I said, oh, this isn't right. Something is wrong here. What is going on here? Oh. I'm being abused. Oh. I'm being adored again. Ohhhh.
I set a boundary. It was breached. I set it again. It was breached. I ended it.
So. Where did that get me? Alone in my room tonight writing on a mental health forum

. But I'm okay with that. I really am. I've opened myself up to a future now with someone NOT-disordered (I have no idea when and if that future will be, but at least I'm available for it).
I'm unsure I will ever stop attracting pwBPD. I can't lie. I like them. A lot. They intrigue me. It's pretty much guaranteed that if I scan a room, and I am super attracted to someone, that might as well qualify as a DSM assessment.

The relationship that drove me to this website, and almost through a median ... .she's my best friend now. Who'da thunk it. (She went through MANY years of therapy after our relationship and if there's any chance of "overcoming" this disorder, she achieved it. But she still has that "spunk" that only a life of PD can bring, and I love her for it.

)
But anyway, like I said, I probably can't stop attracting or being attracted to them. But what I can do, is not pretend like I can make a life with them. I know my limits. My max tolerance on that particular type of behavior has proven to be about 5 months. Yep, I like them a lot. But I can't marry them. I can remind myself of this whenever I am feeling lonely. That, I can do.