Once again thank you for your apex advice. I am really thankful to have a space to share this with people who have lived experience of this.
Am I crazy for wanting to take him back if he ever did try and ‘charm’ me back up? My better judgment would have to avoid it like the plague but there’s a part of me (probably because it’s still quite raw) that romanticises about the idea. Please be the voice of reason. I need to hear it.
BPDs are constantly seeking happiness, and they find it for shot bursts of time. They do what's called "love bombing", which means they see everything as PERFECT...your clothes, you hobbies, your tastes in food and music...they're absolutely PERFECT in every way.
As the relationship grows though, they start to realize....hey, this person isn't perfect at all! And instead of realizing that they were thinking in a disordered way when they met you, their brains assume that you've changed and you're just not that great of a person after all. So they flee at the first sign of something better, and that new thing is absolutely PERFECT...until it's not anymore.
He's met this new girl, or old friend, whatever. And the relationship is going strong for now because of how his mind works. He sees Cinderella and the castle and the whole fairy tale unfolding right in front of him. But it's a lie, it's always a lie because none of us can live up to that standard. So the new relationship will fail as well.
What happens next? One of two things. He finds someone new, or he repeats old patterns. And if he reaches out, he will apologize profusely because everything about you is so PERFECT for his life and makes him feel whole.
Can you see the problem here though? It's a very predictable pattern where the relationship starts with disordered thinking and ends with it as well.
The other issue is that once you've been through the whole cycle once already, things happen ever faster. You're the best ever, you've changed, you hate me and I don't know why! The next rounds are sometimes months instead of years and the behavior is even more erratic.
Now, you can somewhat change those patterns by being ultra patient, showing ample affection and affirmation, etc. These relationships do sometimes work long-term, but the percentages are very, very low. And even when they do succeed, there's a price to pay in order to keep the peace.
I can't tell you to give him another shot or not. But I will say that if you do, the odds are stacked against success without him getting into therapy a taking his mental health seriously. The same patterns will repeat and it has almost nothing to do with you as a person or a partner.
Again, the final answer you'll discover someday is that he's sick and he can't help this. It's not your fault and it's not his. Your job right now is to heal and love your kids...that's all you can do.