You know what? Sometimes people do things that make you hate yourself.
I can't quite put it into words, but you know, sometimes you come across people who are unique or unconventional—whose personalities, tastes, or behaviors don't necessarily suit everyone's preferences, and who might even upset others. Yet, these individuals try their absolute best to conduct themselves well, only for no one to really care in the end.
And then, if that person gets angry and wants to be themselves, everyone says, "They’ve always been bad-tempered like that!"