A great post Moselle and I'm so pleased for you. You sound so different from this time last year.
I've learned a lot too, much of it similar to your experiences.
I went to a specialist in regressive hypnosis. I wanted to change my emotional responses so I wasn't vulnerable to PDs. He talks to my subconcious, discovering emotional responses that I have repressed, giving me the choice as to how I want to change them, and why they were there in the first place. He treats my infant, not my adult self. Five sessions over ten weeks and I feel so different. Probably a couple more to go yet.
Like you, I can see disordered behaviour now, it's surprising how I didn't notice it before: it was my norm. I also feel more confident, even my posture has changed. Optimistic and grounded.
I tested myself recently. I haven't re-read any of the emails between me and exBPD. Read them all, wasn't triggered. I realised how much I gave, how withholding he was. How little had been enough for me.
So my experience had double benefit. It caused me to look inwards, to understand why I was vulnerable. In doing so I learned many things about myself that I had been unaware of and it enabled me to change then.
So thank you BPD, I'll never get involved with you again!
Glad to hear you sounding so positive. Onwards, higher and higher