Just catching up, Sara. This is long battle you're fighting. Think in terms of months or maybe years. It's not an easy one. Why are you fighting it? For your kids? Because you still love him? Whatever your reasons, grab onto them and make them your priority.
When thoughts of what he's done start creeping in, force yourself to think of something else. Not to forget, but to try to start your own healing. You need to start there. Even if your H wanted to move on, he won't be able to if you don't.
Hope you have a better day
M:41 H:43 T:26yrs M:19 yrs S:15 D1:14 D2:9 Living together but separated