John and I are both in alignment on the being with people thing. Honestly, I have the same reactions your do. I want to get away and be by myself similar circumstances. However, I usually find that all I do is wallow in my own freakish misery.
I also agree that you should avoid H talk for a few days. Not for him or the marriage, but for you.
Keep breathing. Winston Churchill said it best "when you are going through hell, keep going"
