Pangloss wrote:he went from "my life is so much better without you, you really destroyed everything you evil B*" to "If you change and be less destructive, maybe I will consider working things out with you...etc.", all in SMS text.
If he's anything like me, he'll go to a more panicked, desperate state, begging, maybe tears. But, it will still be "Listen: I'll drop the part about you being less destructive. I care about you that much, baby. You can continue to be destructive."
The last thing he'll see is that it's him. It could take decades of this repeating pattern. You could be doing him a favor so he experiences it sooner rather than later. (I.e., if you left him 10 years ago he might be close to "getting it" now.).
It's a weird place to be. If he's like me, he'll really believe he loves you enough to sacrifice for you in that way. He'll genuinely feel what he thinks he's feeling for you. ("The feelings are real, so what's the problem?"). When I was at that point, I think I was writing the next chapter of the narrative. Kind of a "I tried to help her. I did my best." The loss of supply will amplify that into a desire to help more (try harder to help you, check in on you to see if you've come to you've had a "absence makes the heart grow fonder" experience like *I* did.).
It's strange thinking about it now because it's so "not there." It's why I keep thinking NPD is "borderline schizophrenia." It's like having an invisible buddy who helps you see things in a "special" way.

What I'm thinking about now is how strange it is that I could hold those two views simultaneously. It's like I've said how my mind was like a simultaneous funeral and glib, yet-persistent march. On the one hand I could be dismissive and "so what, if that's what she wants, ok. I tried. Poor thing will just have to miss out on all the greatness I offer." AND "I can't hardly bear not having her. I cared *so* much."
I think that ties into the pride/shame thread and and re-enacting something. I wasn't thinking about whether it made sense. I just felt it. It had nothing to do with me in the "now" (and the other person as a person.).
I don't think you have anything to worry about except more desperate attempts at pulling your heartstrings. If the backtones of condescension (and realizing he should have been more tolerant of *your* faults) subside, it might be a good time to have the neutral (yet clear and concise) communication to make him perhaps aware. (Or, at least plant the seed.).
I never had a violent streak, like forcing someone to comply. Nor a "if I can't have her nobody else can." I would just be the victim of someone who could have been the one, but "like everyone else..." A somewhat soothing confirmation. (Perverse in the same way I could hold those two thoughts mentioned above.).