That is the single most tragic thing about him.
Cuckolded and furious to the point of terminating his parental rights, sad but not completely his failure.
Far more stupid and dense than he thinks he is, again, not really his fault, more a quirk of genetics.
But being so unpleasant, despite looking clean enough that body odor probably is no worse than average, having some hobbies which are social enough, and hanging out in a bar all the time, his best friends are a group of people from the internet dedicated to making him into a laughingstock, well it shows how unpleasant he really must be to be around.
Even sad hopeless boozehounds and junkies I have known over the years seemed to have a couple of friends. Maybe they were just people they drank or got high with, but they at least sought each other’s company.