His biggest flaw is that he feel too much, cares to much even when he doesn't want to. He's spiralling and taking everyone down with with him because even if he has the heart to do all the right things, he doesn't always know how to. He just wants to protect his sister. He just wants to be loved but he can't be what everyone wants him to be. Because he is what he is. He is self destructive and in pain. But if it's about survival, isn't a little agony worth it?