It sounds like you're doing great. He said he's impressed by you and your attitude. I would focus on that and not panic. Nothing has been set in stone. If he wanted to divorce you, he would have filed a month ago.
Me 36 Husband 35 D5 S2 separated: 10/29/07-present Served divorce papers 1/22/09 "When the world gives out beneath your feet, it is time to learn how to fly."