they project themself as a dry emotionless asshole who is intentionally abrasive and has no friends. but underneath that cold exterior, is a person who burnt down their family's house with fifteen people inside to avoid getting charged with the seven murders they committed.
but underneath /that/ they're pretty chill.
they accidentally help a lot of people in a desire to not blow their cover and at some point someone points out that they're a good person and they obviously deny it but besides being kind of a dick they can't pull up any instinces that contradict this in the last decade and spend the next week being like "?????????"
basically they had to assume a false persona after they faked their death and they intentionally crafted one that was distant but low key- basically they tried to fake being who they were if they didn't have weird bullshit with their family and weren't completely morally bereft, and they did a good enough job that it's basically overtaken their "real" identity, and if they tried to go back to how they were before they probably wouldn't get very far.