This doesn't, of course, sit well with the oblivious clod because the same grandiosity that distorts Liz into a monster trying to kill him because he has to share makes him think that if he has to endure teasing and if Elly has her own life to live, the world is a terrible place because he cannot occupy all of it. He thus doesn't see the spoiled, entitled brat who thinks that the world rotates around his needs that the rest of us see. He also doesn't see that Elly is a depressive narcissist whose egomania takes the form of thinking that the whole world rests on her shoulders.
Since he has no such insight, he doesn't realize that Elly spends most of her free time taking his maunderings far more seriously than they need to be. The occasional flare-ups of self-respect when he exceeds the limits of her tolerance seem to teach him nothing about the woman who's raising him and I honestly doubt that they ever will. As I've said before, we can look forward to an indeterminate future in which the dumb-dumb calls her crazy because she says that there was a good reason she had to wait until she was in her late sixties to get her BA and he's it because he's conned himself into thinking that he was her cheerleader and not her persecutor.