Is there something that can make you never forgive an anime character?

[DarkAngel]

what is that lol?
for me it's betrayal. what about you?

 

[Demon_skeith]

When they usually backstab a character or go back on their promise.

 

[DarkAngel]

that's true.
promise is an important vow and you can't make it casually and you shouldn't break it