Sounds as if you had an emotional day yesterday. I totally understand the need to want to help H. That's probably been your job all through the marriage, the fixer. You have a big heart so it is only natural that this would be your first instinct even now. I'm so glad that you've snapped to attention and re-thought your involvement.
I'm sure that MIL does not know the whole story. So who knows what's really going on with this in relation to OW. What I do know though is that we are much healthier when we can detach and let things play out according to the plan. If you were to step in and he doesn't want your help, it could get nasty.
