I also find it a bit off the way she uses a roll of paper towels to mop up after him, rather than a box of tissues. It's not as if they are not living in a new, affluent Russia, with a smart apartment and all mod cons. I've seen this with other couples too, using toilet rolls or other things to do the mopping up. It must be said that Leora is much kinder to the environment and mops up after herself using her underwear which is about to go in the wash and I think that is far more pleasant a way of cleaning up.
Or is there some reason why paper towels rather than facial tissues are not widely available in Russia when they are everywhere else in the modern world and are so much more hygienic?