I hate nice girls. Just exchanging pleasantries with them makes me curious,and texting each other makes me feel restless. If I get a call, for the rest of the day, I'll keep checking my call history with a stupid grin on my face. But I know the truth. They're just being nice. Anyone nice to me is nice to others too. But I always find myself on the verge of forgetting that. If the truth is a cruel mistress, then a lie must be a nice girl. And so, niceness is a lie. I would always hold expectation. I would always misunderstand. At some point, I stopped hoping. An experienced loner never falls for the same trap twice. A lone warrior, surviving hundreds of battles. When it comes to losing, I'm the strongest. That's why, no matter what happens, I will always hate nice girls.

When humans are faced with truly terrifying circumstances, they don't think about other people around them. They're even willing to sacrifice those around themselves. By exposing that unsightly part of them, they can no longer get along.
 So that's it. She's given up completely. It's said that if you change, the world changes with you, but that's not true. When people evaluate others, it's through prejudice and existing impressions. People who are alone are pressured to stay alone. If they work hard to stand out in something, it only becomes ammo to use against them. That's the lousy rule of the world of kids.

Saying "I can change myself" is just admitting defeat in order to adapt to this cold cruel world, so that you can be its slave.  It's no more than a basis for deceiving yourself and decorating it with pretty words.
There are things that cannot be taken back. But the world will keep on spinning whether you laugh or you cry. High school life will eventually end too.

Hachiman Hikigaya (My Teen Romantic Comedy SNAFU)