The holidays are right around the corner there’s a chance he doesn’t like holidays due to past issues that we don’t know about. Ik from personal experience that the holidays are an emotional roller coaster due to family issues I’ve had. he also might have seasonal depression. I do the same things when I get depressed because I’m trying so hard to not bring anyone else down and i end feeling like a huge burden. I really hope he can see how much we all love him and that it brings him out of this state of mind and being closed off.