I wouldn't bring up the subject of a divorce. If he does it again, say "h, I am sorry you feel that way, however, if this is something you want, I will not stand in your way". Do not help him w/the divorce. If he wants it, he will have to do the heavy lifting.
Sometimes the word divorce is like the brass ring that you reach for on the merry-go-round. They think that this will bring them relief from such an unhappy situation, but they don't stop to realize that the day-to-day life doesn't stop. Sure, he may feel euphoric for about 6 months, but then it will all start to tarnish and the bills are rolling in, responsibilities start to raise their ugly heads and money isn't there any longer, etc. So, if he thinks that la la land has unicorns and faeries, then so be it...but it's up to him to file.
I would suggest that you read HaWho's threads. Her h is in crisis and is living in the "dorm" room at home. She's done an exceptional job of keeping her sanity and she has two sons that are still at home and dealing w/their dad's acting out.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.
