"You keep saying you were trying to, but you. weren't. protecting. anyone!" Chara stabs a finger at him each time. He's hit a nerve, and Chara's face is flushed with anger, because protecting people is a good thing. Even if the actions are evil, it's something pure to wash their soul's hands in, and they take the distinction seriously.

"If you were saving people, then that'd be better, but you lured him into a trap. He wasn't hurting anything. He wasn't even doing anything to you!"