>>283585459
That 8 years during Which Deku friends barely talked to him because they were busy, was one of the biggest points. Then the fact he became a teacher made him give out the aura of someone pathetic that gave up on his dreams without a fight.
I liked how THAT doujin, touched upon those ideas, making so Ochako, even. After becoming cock addicted, only lost her feelings for Izuku after noticing he had lost his shine and energy, just taking the path left for himself without any passion.