Did he come out and say something about you going w/them? If he didn't, I think I would sit this one out unless he specifically asks you. But, again, it's up to you. Don't "assume" anything w/them because assumptions are generally wrong most of the time.
Yes, he is confusing because he's running on emotions. Keep the conversations light and on general topics, such as the children, etc.
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.
