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.
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 "?????????"