Right. He has important things to do, and she doesn't. Not here, where nearly everything about her life's work is practically useless. So he's doing something important, but it's not important enough to share with her what he's been doing even if he gets hurt doing it. "You didn't blow us off," she says. "We didn't have plans. It's fine, Jack. Just, whatever you're doing, please try not to break your neck doing it."