Isa's Tuesday Reaction

After completing Notes from Underground, I was left with a strange feeling of dissatisfaction. After the constant complaining, and anguish that the narrator goes through, he never truly undergoes any sort of change by the end. He completely demoralizes Liza and is once again left standing alone, with only his overdeveloped thoughts and underdeveloped emotions. At the end, the narrator implies that he is the bravest by actually acknowledging his shortcomings. I think there is a half truth to this. Yes, it takes courage to admit one's flaws, but it takes even more bravery to try and fix said flaws. I don't think the narrator was ever emotionally evolved to reach this point. He understood that he had problems, but he repressed them by projecting them onto others, like he did with Liza. Such behavior showed me that this character for all his talk about free will/confrontation was never able to apply the same standards to himself.