But surely she could just pretend nothing was happening if she was out of earshot. People do it back home every month!

Yuri sinks into silence as well, not sure how to read her reticence. He doesn't want to push her too hard when they're more or less getting along (there haven't been any major outbursts on either side, at least). He's not so obtuse, though, that he doesn't eventually notice her shivering.

Are you cold?