[...] meaning that there was something SERIOUSLY wrong in the relationship and that if I did not do something soon, I would get sick - very sick.
Rev I'm glad you're coming to terms and being at peace with your role in the relationship with that person. I'm also glad that you're doing what's good for yourself physically in the long term.
I love what you say about your relationship to yourself and knowing a real relationship.
I think I was just very blessed to be put in places to put things together. It helped me a lot to pray for what I wanted—I think understanding what it means to be happy single was one of those blessings. My T was the one who told me that effective self-validation helps you know that you can be there for you—when you've got not parents/SO/best-friend there at any given time. So relating this to your post, I do think that even if you think there's something you didn't like about yourself/how you behaved—then that's still okay and you can grow and develop forward regardless of how much of a "mistake" you think it was.
Curious - for you was healing a step by step process that just kept moving or are there definitive moments when you stopped and said - "Hey - I'm getting better than I once was"?
Rev
Hm.
I think a lot of healing happens from things we don't control.
It was step by step in the sense that OK, is there denial in my life, what were the things I said here, what were the things I said that I wish were different today, what could I have done in this particular vignette, what is my understanding about BPD today compared to 2 years ago (if I think back to when I just broke up).
The "Hey - I'm getting better than I once was", to me is more like "Hey, thank God I'm wiser today, and I wouldn't do that to lead me to X situation".
Easiest example in detachment is to see what I'd do in a particular situation.
So one of my ex's favourite BP games was the no-win game. I'm refering to Mason and Kreger's example where the BP sets you up with a choice that (A) if you do X, then you must be Z, or (B) if you do Y, then you must be Z. Any choice you make makes you "Z".
1 month into my relationship with the BP, I'd follow the very "flesh" path and just do what I thought was good. I'd try to "prove why she shouldn't feel X anxiety". These people really set themselves up to fail by their excessive focus on fixing an issue-on-hand—which is consistent with what Mason and Kreger wrote that people who follow this path get stuck in these situations.
During my time after the relationship, I found myself picking a lot of the responses that empower the non to make the choices. Example being empowerment to walk away from a given relationship,
if they want. When I recognise this here, I know that I've grown—because I'm making better behavioural choices than I'd make back before I knew about BPD.
Returning to your question on healing. I think I felt better over time as I took "corrective" steps to avoid "mistakes" like getting into the relationship with the BP. Another perspective is to see that we never really "heal" from a relationship because we weren't really "damaged" to begin with. Healing is the noun of "The process of making or becoming sound or healthy again." Many of us are so blessed that we weren't unhealthy. It may
feel like we were hurt because breakup from a BP in a drama triangle feels like losing a limb. When we've got time and space to figure things out, it may not be as bad as that.
What do you think?
once removed 
i never really reached that place either...no judgment, either way, my ex is just kinda somebody i used to know and i dont really have any energy in her outcome either way.
Mm thanks for sharing. It's good to know that I'm in good company in this feeling tone of kinda detached, indifference, or absence of concern.

did you reach forgiveness? i always wondered if wishing someone well and forgiveness went hand in hand.
Hmm good question.
I took the dictionary definition of forgive during my process. "Stop feeling angry or resentful towards (someone) for an offence, flaw, or mistake." I don't feel angry about what happened. So by this definition, I've forgiven practically. I don't feel anger.
I learned that when we forgive, we aren't giving permission to someone to repeat what they've done. Knowing my ex for the BPD she suffered, and the high chance she's gonna be stuck in those situations, I'd wish she gets what she gives. If she repeats the things with another guy, of course I won't wish her "well". If getting "well" results mean getting a result she deserves, from punching someone in the face, for example, then I do wish her "well"!

So I suppose it depends on your definition. I'd consider I've reached some point of forgiveness, per the definition. I can wish her "well" if well means to get what she deserves. I won't wish her "the best / good things" though, best perhaps being good things regardless of the wickedness in action she brings into the world. I'm not Jesus lmao.
I'm a bit different in that I do want my exwBPD to do right by my daughter.
iluminati does it upset you when the pwBPD doesn't do what you want her to do?