You like when villains have a redemption arc, and you sympathize with unlikable characters.

More specifically, you like it when they become a part of the team without losing their personality. Like Zuko from ATLA.

But it's less because you feel like it's wholesome and they deserve it, and more because nobody ever liked you when you were mean or "weird". Nobody wanted to be around you, nobody thought it was cool or wanted to be your friend. The people you were "friends" with were people who thought you were entertaining, but ultimately would've liked to see you suffer, or at least found it amusing.

But that's okay because for the time being, someone appreciated your personality for some reason, and they kept you entertained. It was enough. 

Until it wasn't enough, and you needed stability. Even if you tried to show you cared, the fact that you were generally rude and blunt, or even just unusual, was still a problem for everyone around you.

You like seeing the villain everyone hated join the team and become accepted and understood for who they are because for anyone to like you, you had to stuff your personality in a box and lie about your opinion. And sometimes, it still hurts.

You're kind now. It's an instinct to push away the honest things you'd like to say to people, or your odd and sarcastic humor you know would make the room go quiet.

To smile when you really don't want to, or to sugar coat your voice so you don't sound too monotone or "grumpy" when that's genuinely just your normal tone.

And then you sit in your room with a book or your favorite game or show and fixate on the unlikable character and their friend group and wonder why nobody could ever understand or like you for being you, ya know.. Back when you acted like you.

You've thought about starting to act like you again, but when you try, it only upsets people, and you don't want to go back to being alone all the time.