They chose to keep living together, otherwise they both wouldn't have moved from the other apartment to this new one still as housemates, beyond as friends I believe they are. So RLC should provide them a two bedroom apt in case Elli really wants to have her guy in the apt and Vlad wants to keep living with her and/ or even gets a guy too. Otherwise this situation being prolonged in time will become unsustainable for both of them, either in terms of privacy as in terms of freedom and ease to walk around the house, and even in terms of rest, since one of them will always have to be sleeping on the couch, especially Elli and her guy or Vlad and her future guy who knows, and that will start affecting Elli and Vlad's relationship.