Sounds like you did OK. But, again, I'd recommend that you just stick to business.
Don't be his shrink. Don't be his judge. Don't try to get validation from him for your perspective. All that conversation did was let him work himself up into feeling more sure about his choices, and disrupt your evening.
As for the kids seeing CW, you aren't going to prevent it. It is a destructive waste of energy to try to do so, IMHO. I posted about this yesterday(?) on BFM's thread if you are interested.
No. CW did not destroy your M.
Parallel parenting and no friendship sounds like a very good place to be right now. Good job.
