totite, I was wondering if you had read "Wild at Heart" by John Eldredge. I see that your H's dad had OW, my H's dad did too. Anyway, it is a heartfelt book that kind of peeks in at the H's heart as to why they do/did what they do.
Relax. Appreciate. Be calm. Laugh. Enjoy. Be secure. Be loving. Be loved. Don't personalize. Don't ASSume. Accept. Be grateful.