After yet another near death experience, both at the hands of field artillery, and legitimately walking into a trap set by none other than Lilith. Lily was at a breaking point. Not psychologically, but rather she could no longer deny the fear she felt for Zane the moment he joked about nearly getting his heart removed by a tier V Horde King.
The party was still in the Humvee on the way back to Gravestone when Zane made such a comment about his own life as if it were utterly worthless. And in doing so provoking a strong and unexpected response by Lily, who, while normally quiet about the group affairs, outright shouted that Zane's dark sense of humor towards his own existence wasn't funny in the slightest.
"That's not funny Zane! Your life is worth more than you think! Have you ever thought how any of us would feel if you got yourself killed like that!?!"