His lifestyle never ends well.
He won't recover.
I don't necessarily think he's a bad guy, but he is an extremely weak-minded fool who has allowed his crutches (i.e. vices) to derail what could have been a wonderful second half of life.
Now he's got HIV. No, it's not the death knell it once was, but it's a major-shit disease, nonetheless. With it, you're polluted for the rest of your existence. Your very blood is potentially lethal to another.
Doesn't exactly make one feel great about himself.