Wait until he says one thing and the next minute changes it all over again. Memory tends to weaken during MLC and that's because of the depression. How is his concentration? They can't handle long talks or texts/emails because their attention span is that of a gnat.
I think you've provided a safe place for him to land, but what are you doing for yourself? You can't fix him because you didn't break him. He's got a lot of work to do on his own and like you've been doing, i.e., providing a safe place for him to land. Continue to be a friend and if he asks for you opinion, then give it to him, but otherwise, I'd give him as much space as possible.
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.
