This is your first post divorce relationship? And he's pulling on the same manipulation techniques as your ex?
You are about to repeat the pain of your marriage.
Now this explains a lot. This is where you get to exorcise the demons of the past, you get to stand up and say NO!, i'm not going to quake at the idea of someone making threats to leave....
You get to say, 'You wanna go? GO! Nobody wants to be withsomeone who's not interested.
If you cling and quake, they'll keep doing it.
It'll be just like your marriage, and you're not going to want that.
This seems to be similar to those of us in abusive relationships, unless we heal ourselves, work hard to learn our strengths, our weaknesses, and how to spot those that would exploit them.
End it with this idiot, keep posting, take stock and it will be ok.