He swallows thick and shelves his mini crisis about his lung status and nods, okay, that's clear enough. She needs to breathe, so for now he's going to act like they both do. Probably.

"Yeah, totally. We'll have to ascend on the slow side so we don't faint from the atmosphere shift. But a slow ride can be as fun as a fast one when you've got a good view."

Speaking of view, they are now pretty high up and able to see most of the city lit up by lunar orbs and lanterns.