@Joyce477 :
I have a very bad feeling about what would happen if you rented the rooms to two unrelated couples.
It sounds like trouble even if they had separate bathrooms, but sharing a bathroom? OMG.
I hope you have another bathroom for your exclusive use or things are REALLY going to be unpleasant. You have a job? You can be sure that when you are trying to get ready for work someone else will find it necessary to spend a long time in the bathroom doing something unspeakable, and when they leave you won’t want to be next.
I could go into vivid detail based on my active imagination, but consider this: the Chinese pictograph meaning “trouble” is a house with two women in it. Clearly this is not an isolated phenomenon.
I would suggest that you completely isolate your personal space(s) and rent the other part of the house to one party at a time.
If that consists of two couples or two singles who want separate rooms it will cost them the local hotel price for a kitchenette suite plus an extra room: perhaps $150 plus $75 = $225.
If it’s just one couple, let them choose a bedroom, charge them $150, and lock the other one so they can’t invite overnight guests without paying extra.
In effect you are renting them an entire house and you need to make them pay for that. If they would rather go to a hotel you don’t want them unless you want to be used like a servant.
Two separate couples who book separately? Who will soon come to hate each other? Who will fight over the bathroom and everything else and expect you to referee?
I think I’m going to be ill. . .
I think you need to charge more and give less.