Every minute of every day? That would be worrisome indeed,
I have zero patience for tenants that go out of their way to cover themselves. They knew what they were getting into before they joined. I prefer no sex over covered sex.
IMO, it's him that's forcing the covers. He is a terrible sex partner...not because he has no trigger control, but because he makes no effort to compensate for that by pleasing her other ways, She would make a great tenant with the right partner, but if this crap keeps up they will soon be on my D&D list, where I don't click on the apartment unless there is a guest there.