Thank you, all you lovely people, for your support and wise words. I'm starting to re-remember all the things he's done over the years, and see the holes in the things he was saying at the weekend - but it seems to take him being away again for 24 hours or more for me to start seeing clearly again! Tbh, it's exhausting emotionally, having him in and out of the house so often. I think I'm resolute again that I want him to leave, but it's much much easier to think that when he's not here!
Holes in what he said, just for the record:
he can't remember the incidents I mentioned, and finds it hard to believe he could say/do that - casts just a little bit of doubt on my version of events; also means if he apologises, it's like he's doing it on behalf of someone else.
he warned me not to over-analyse a couple of times - casting doubt on my thought processes again, a bit dismissive of my logical capabilities
he asked me to point out to him when he says something critical or controlling - puts me into role of teacher
he said he can't do counselling yet as he's out of the country too much - but gave no plans as to when he could and how
he said the most important thing in his life is saving the marriage - but I don't remember him asking me if that was what I wanted
he is taking me seriously now, now that I have said clearer than I've said before that I want to leave. So that's what I have to do to be taken seriously, is it?!
He just seemed to behave like a child; it was weird. Like he wants to be better and to be led through it (easier for him, I guess). He seems so different from some of your FWs - I can't remember him being aggressive towards me, not for ages. Maybe he uses passive aggression, though - not sure I'd spot that so easily.