Tell him you're done having the conversation, and leave the room.

If he stalks you around the house, leave the house. Come back in an hour.

It sounds like you have trouble setting a boundary.
Key point - I've struggled in my life with boundaries. So, I'm the pot calling the kettle black in this regard. However, I have been able to set a few key boundaries in the last month, and they're holding.

Like when I tell my kids "I'm willing to listen to your concerns when you calm down and talk in the same voice that I am talking to you". Then walk away.

M46, EXWW46
M15 T17
D20, S19, D13
M - Addiction since 1998
W EA/PA #1 2013/2014
W EA #2 June 2015...
BD 1 Big D talk 9/15
BD 2 - EA/PA disc 10/30/15
Served D 1/22/16
Divorced 5/25/16 (yes, that fast!)