Vincent who can't ever look at photos from their childhood because all he sees is how sad Bo looks in each one. He remembers the days that certain photos were taken on, and how Bo was restrained to his chair or yelled at for being a "monster" only hours later. He hates his younger self for not being bad enough. For not being loud enough. For making his parents think he was an angel when really him and Bo were both just as bad as each other.
Vincent who cuts/burns his wrists so that Bo isn't the only one who was left with scars. It helps him deal with the uncomfortable guilt. He knows Bo has to be reminded of what he went through each time he sees his own wrists. The least he can do to try get even with him is to make sure that each time he sees his own self inflicted wounds, he's reminded of everything that he unfairly got away with. It's his punishment for being the better twin. Hence why he keeps his sleeves so far down.
His heart sinks every time he catches a glimpse of Bo's wrists. He feels sick with anger and he sinks into himself. He wants to grab Bo and tell him how sorry he is but he's so afraid of how he'll respond that he doesn't risk it. Instead he goes quiet.
Sometimes he can brush it off. Accepting that he can't change the past and that his parents are the only ones to blame. But on days where it all bothers him more he distracts himself by sculpting or painting for hours without taking a break. Or by sneaking out to find somebody else to take his anger out on.
Vincent loves his twin, more than he has ever loved anything else. They're a team and they couldn't live without each other. But there'll always be an awkwardness between them. Vincent hopes that only he can feel it, and that Bo really did mean it when he said he didn't care about the past anymore after their parents died.
Vincent kills people as brutally as he possibly can, because if his mother couldn't see how much of a monster he was while she was alive, he's gonna make sure she sees it from the grave. Each time Bo messes up a kill or almost lets a victim get away, Vincent's frustration is quickly washed away by a sense of relief. He looks in the direction of the church where his mother lays, as if to say "He'll never be as bad as me. Do you see that now?"
