I…feel kind of bad for him…
I mean, he’s a kid. Who never had a parent, who had to share his body with someone he despised, and he’s obviously really ashamed of not being that smart. Like…I kind of feel like nobody really taught him right from wrong, so even though he knows killing his sister is wrong, he doesn’t understand why, or how serious it is.
I have a tendency to woobify characters, but I’ve also got a real soft spot for kids who are on their own. Like, he never had much chance to be anything other than his most basic nature.