The best you can do is "he learns that people will help you even at your worst", but not only is that kind of a weird lesson to give to an abuser of all people, it also means fucking nothing! Because he STILL insults Pomni in his last moments! He never thanks her for anything she's done!

And other than that, what else does he learn?

He learns that he can physically assault people with little to no pushback. He learns that he can harass and traumatize people and no one will get on his ass for it for more than two seconds.

He learns that no matter what he does, people will bend over backwards to keep him stable, even at their own expense.

And, again, what a terrible fucking lesson to give to someone with almost no redeeming qualities, someone who's basically done nothing but hurt people for years.