Do you think he's more sitting at a "comfort" zone and he is afraid to really change anything as in moving in any which direction?
I think that's only a small part of it. If I thought he was that much of a jerk, I wouldn't hang out with him so much.
My gut says he's afraid of making the wrong choice, or trying to date (anyone) too soon. I suspect he's afraid he's not 100% 'fixed' yet, and is afraid of ruining another workable R.
He did ask me the other day if I thought he was better. We both joke about 'old' him versus 'new' him.
Not that it matters much to me what's in his head... ...that would be too much focusing on him. I just find it all very interesting.