A, I cant believe how similar our sitches are. I am married 26 years and with him 31. The bomb was 19 months ago. He finally moved out three weeks ago. There is an ow. I too need to move forward with a legal settlement. I told him he has to file since he wants it, he hasnt yet.
So, I guess this is all part of it. So many similar stories, it really is unbelieveable.
I have waited way too long regarding the financials and need to get that sorted out. But I feel the same as you, it will be very difficult to remain friends.
I think for now, if you can, try to stay as dark as you can. They really need to sort this out on their own. I think he now knows that you think of him. So let it go for awhile. Any more might seem like pursuing. Leave the ball in his court for now.