chicory, it takes a little time to get these things set up and going. It does not sound like bi-polar, to me. He isn't going to change around overnight--especially since he has not even seen anyone, yet.
For the moment, patience with the process is your best bet....and keeping a very calm, low profile. I suggest that as little talking as possible about it would be a good idea. Show as much detachment as humanly possible to his anger reactions. Your response only reinforces it, actually.
Chicory, this has been going on for years....it is reasonable to expect that it will not be completely seamless and that you might feel discouraged o n some days.
Chicory, right now is the time to remember NOT to give up in the middle of the stream.
dandylion