Oh man. Yep, she likes this guy. That super extra eyeroll sealed it for her.

"Cave. That sounds pretty cool. There must've been a ton to explore." She probably would've liked it too. Except-- "I'd miss the sky, though. I'd be afraid of forgetting what it looks like."

For anyone else, that's an exaggeration, but for Kat, it's a real fear, rooted in the downside of what makes her so unpredictable in a fight, and in life in general.