It's good that he sat somewhere and just thought about things. He may have thought about moving to a hotel/motel for a while since he had his travel bag w/him. However, it appears he's not ready to move out, so you need to be thankful for that. However, if you do not give him the space and time he needs, he may very well do so. What do you do? Leave him alone and just be there as a friend. Listen, validate and only offer up advice when he asks for it.
What can you do? Keep the focus on you and your children and those expectations that you have right now? Drop them down to zero. The less pressure you put on him to act like a grown up and be there to support you, the better. More pressure = more distancing by him.
Leave him be! He'll come to you when he wants to talk and/or if he needs something. Keep the focus on you and your family.
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.
