You back off and see what happens. It is quite normal as you learn another person to see good, and not so good. When he is ready you will talk, but you have to allow him space to deal with himself, and act accordingly. In the meantime do your own thing.
Of course you are concerned, and it's so easy to get use to the routine you have already established, but this may be a time for patience, as adjustments are needed,in both thinking and actions. No hurry though to figure it out, nor have the perfect solution.
Just be cool and be observant, and did I mention, keep doing your own thing. It's a case of more facts will be revealed later, and who knows if that's a good thing, or a bad thing, and only you can know what you should do about it. Do what's best for you. What do you think?