Morning Ellie,
Yes, I think you are wise. Also, I'm sure you've changed locks, alarm codes, etc. Even if you think he doesn't know the code or have a key - change it anyway. Better safe than to find out some other way that he has access. Again, I'm sure you've thought of this.

Extricating yourself with surgical precision while making sure there's no excess bleeding is a great plan.

Have you thought about Alanon or Naranon meetings, short term? Might be helpful.

Also, just wanted to say that I am in the throes of re-reading my threads - a page from Cali's book - and from the beginning you were always very supportive. I truly appreciate that.
xoxoxo

M 20+ T25+
S ~15.5 (BD)
BD 4/6/15
D 12/23/16

"Someone I loved once gave me
A box full of darkness.
It took me years to understand,
That this too, was a gift."
~ Mary Oliver