My IC has told me it is 100% OK to walk out of a room if you or the other person cannot hold your temper and deal with each other respectfully - but you do need to say so and say when you're willing to pick the discussion back up. You don't get to just walk out without doing that.
The saying when you will pick the discussion back up is vitally important. My W is one to just walk out of room and hope that the issue goes away. I've watched her family do this also in disputes. It's not fun being the person left alone in the room with nothing resolved and not knowing if anything ever will be. It can build up a lot of resentment if not dealt with.
Personality is who the world sees, character is who you are
