Matilda..I haven't posted on your thread but do follow it.
I think you are wise to stay out of your H's drama.
I would go as far as to not engage in coversations about his guilt etc..maybe acknowledge that you've heard what he said..but just go on your way..... so to speak.
If he sees that you are compassionate but not willing to enter in to his drama..I bet he'll back off.It's a way of setting a boundary with him.
It sounds like your h might need some individual C. Maybe a few sessions alone w the C.
Have a wonderful time w your family in the next few weeks.