About your wife being damaged by her parent's D... I was 30 when my dad apparently lost his mind and left my mother. An adult, and the entire event broke something in me. My H was 5 when his parents D and he acknowledges the damage. I was married to H when my parents divorced, and he SAW the heartbreak it caused.
We both wanted better for our kids, but all he talks about now is how it's "his turn to be happy" - "when does he get to be happy?"
I would never have married this man if I even thought this was a possibility. I begged him, for the sake of our kids, to reconsider. Now, he says they'll be fine. WTF? Do the WAS take a pill or something that makes them forget their promises?
I will never truly understand. I try to, reading up on MLC, but how does a person, as a parent, do that to their children?