I will agree that maybe he's stressed out more then he should be.. the pictures of him IMHO don't look like he's on the verge of dying. I personally wouldn't be concerned as I've seen ball pythons and other snakes that I've adopted from people who weren't properly caring for them and their skin look like it does when a BP doesn't fully shed where there are actual wrinkles. I'm not saying not to be concerned because of his common food strikes.. Maybe hold him more often.. You said you don't hold him anymore and maybe he's just not used to change. BP's are nocturnal and typically lazy my dad doesn't like them because he thinks because they don't come out of their hides during the day when he comes over and looks inside the tub that they aren't as sociable as my kingsnake and gopher snake that poke their heads out to see whats going on.. So as far as him not coming out very much that is totally normal. If all temps/humidity levels are proper and there is no signs of any kind of infections i'd say just hold him once or twice a week and see if that doesn't help. Maybe someone else could have some other advice. However I don't think you should have to adopt him out because it seems to me your doing just fine.. Oh and no i'm not on mobile i'm at work and clicked send on accident. before I had typed my message..