[He struggles not to sigh. She's obviously uncomfortable revealing this and he hasn't even asked her to.

But obviously, his Gallifreyan social mores are different from apparently humans, because she's missed entirely what he's trying to ask. So he has to explain and he has to do it patiently.]

I'm not being sentimental. This isn't about what I'd 'rather'. Or 'home'. Or even comfort, really. This is about... what needs to happen and my part in it.