If he thought these things were problems, he'd have already changed them. From what you write, he is content with his life.
Hi. He is not content with his life. That I know for sure. When he and others were outside having a cig, there was talking of one of them wanting to drive their car off the road. And his general comment on the subject was, "Life sucks".
He is not a happy man. He is a lonely man. Our friends that know him says he stays to himself. That's where I have sympathy for him. He already said he doesn't like having a roommate in the house with him. He likes the house to himself. Don't know if that would mean he wouldn't want a woman in the house with him.
As others have pointed out 'not that much' is in the eye of the beholder. If I say 'not that much' I mean that I might have two drinks after work once a week. To my xah 'not that much' after work would have meant a 12-18 beers after every day of work. And he never looked drunk either.
12 to 18 beers?? Are you freaking kidding me? How can a person's body handle that much?