I agree with @Lotus-eater
However, it may be easier to say something like… You know, I think we all value our private time at the end of the day and while we could spend hours together or even hotel rooms in the same hotel it’d be nice too get some unbridled privacy at the end of the each day.
To seal the deal, I would likely go in with some numbers if that’s what he’s focused on… I house will cost X and hotel rooms will cost Y. Depending on the hotel you find you could likely get some meals, cocktails, or happy hour included.