Apparently Ollie's disappearance was affecting Lynx more than she realized. She thought she'd managed to compartmentalize that, to keep all of her emotions separate. But she'd just gone empty. Gotten a chip on her shoulder, like he said.
Like he was one to talk.
"You may be smart, but you a lot to learn about women." She felt shrunken, suddenly, distant. Mouthing off was how she pulled herself back into reality. "You storm in and just demand I start answering your questions? Why? Because you're the Big, Bad Bat? What next, should I get in the kitchen and make you a sandwich?"