That's something she's heard over and over from soldiers in her care. Why did they live when a friend, a brother in arms died? It's not something she has an answer to, for all that she wishes that she did.

"Kaine," Sybil reaches out to him again, this time hooking her hand in his elbow as if he was guiding her. It's a light touch still, but her fingers tense as she looks up and sees something different in him. "I wish life were fair, but you musn't think you don't deserve this. You can only live the best life you can and honour their memories."

The same thing she's said to so many soldiers, meaning it every time.