I am not going to assume that "memory making" is sexual intercourse... but it sure is misleading to say it in that situation with that context XD!!! Also... Reiji offering his room to sleep in? to a girl? who's this guy? thought he was the type of guy that was very conscious of this kind of stuff? the "when in Rome, do as the Romans do" person? I'm going to say now that I think he will sleep in the living room to not cause misunderstanding but if it's anything else I'm really going to be sad with this manga try to pull a fast one :T