Maybe I'm not giving his family enough credit. My SIL has been lovely to me-- we've met up for dinner a few times, and she's been very open to getting together with the kids, too. And my MIL has also been lovely to me, given the circumstances. She's been open about how much she cares about me, and how upset she and her H (my H's SF) are about this. They have also both complimented me about how I've changed and handled all of this. I have to believe that that gets back to the rest of the family somehow. And I have to believe that I'd continue to be strong and dignified enough to model reconciliation with all of them should that come to pass.
Interestingly, my H's cousin has had some major mental health issues in the past. He was a newlywed when he had a recent significantly difficult period. I think his W's family was worried about her staying with him. But she did. They now have two little kids. He seems healthy. (And he has always been the kind of person to reach out to everyone, to acknowledge birthdays and anniversaries). He sent me a nice email on my birthday. He is a really good person, and his W is so lovely, too, and I am so glad she has stuck by him.
Taking today to just relax and chill out. I had a terrible night's sleep, and feel awful, but instead of being angry with myself for not "GAL" today, I'm treating myself with love and resting. And that's ok to do sometimes, even on a beautiful day.