[Papyrus doesn't even blink at the removal and examination of the photo, busy heading to the kitchen for food prep. It would be much ruder if they were photos Papyrus had any emotional attachment to, rather than what feels like the decorations of an unexpectedly rented hotel room... and he wants the fortitude of something to eat for this conversation. So he calls out from the kitchen:]

Yes, roommate and also mysteriously wife! At least, according to the photos. And paperwork... But she's like us, I think.

[Not in the sense of being a monster turned human, exactly, but in being mysteriously here instead of somewhere else.]