I'm so sorry, Judy. I haven't been in a relationship where we fought like this. My STBXH is an avoider. I would definitely say not to engage him and set a boundary right away "I will talk to you when things calm down" or "I won't be spoken to this way". End of discussion. I feel for you and it is very fresh for you right now. In a few weeks you will be able to step back and view things differently and learn to take a minute before responding to him.
Me:33 H:36 T:13 years M:10 years S4 Separated 05/15 H Filed 06/15