Board Thread:Manga/@comment-31940900-20160614173614/@comment-31940900-20160615233845

I think the psychological trauma is weighing heavily on him. Think about it. At the age of 11, you committed mass genocide against people you didn't even know. For the next five years you're forced to train with those same people, each with a desire to see you, "Humanity's Greatest Threat", be killed. You tell yourself it's for a greater cause, but begin to form attachments to the people you were tasked with killing. He know that Bertholdt was at least friends with Armin, Connie, and Jean from the conversations you have. You reveal yourself to your friends, breaking any trust they had in you. In Bertl's head he's trying to rationalize it, saying it'll be better once we retreat home. But there is no going home. Zeke made sure of that. All the damage on Bertl's psyche has scarred him deeply. He's no longer trying to rationalize his actions. To him, all he can do is hurt the ones he loved and kill me he rest.