[ That's an unexpected answer and it almost shows from the way Amber turns and watches her, trying to ascertain how truthful it is. There's something refreshing in how straightforward Shepard is; no empty niceties, no promises that things will be okay again because she knows it won't. ]

He followed his sister into war so he could protect her. He was... Fifteen? Sixteen? I never asked. What do you think it takes to, not die but, kill again and again and again for the sake of another? He never wanted to. Why did he do it?