He hates how much he relates to what she's saying. Frank's been trying to gather whatever scraps of himself remain after his own war, but the longer it goes the more he thinks that maybe it is a lost cause.

"...Who?" he challenges, still not following what she even wants him to do. If they killed all their enemies, who's left? He looks down at the book in his hand and the scribbles of skulls, flipping page after page, but he stays silent. Her being right about Billy does make him more inclined to trust her, though the whole situation annoys the fuck out of him.