@Marcello-and-Jennifer0
your listing isn't clear and I can't figure out what you offer in your listing.
First, it's listed as "private room in the apartment"
Then you describe the apartment as "The Pillars - luxury two-bedroom/two bath. apartment..."
and then again: "The space, Fully-furnished apartment with spacious, open-concept living and dining area....."
and at the end, in "You must also acknowledge" section: "Some spaces are shared - Kitchen and living-room are shared unless you rent the entire apartment. "
You didn't explain who will use shared spaces, you or the other guests?
Do you rent both rooms together or they can be booked separately by 2 groups of guests?
If you have options to rent 2 single rooms separately and together and the whole apartment then you should have 4 listings, each with its own calendar and different prices.
Everything should be explained very clearly or you could have cancelations and bad reviews in the future.
Regarding your question - you already have this in your house rules but it would be good to repeat it to your guests during the check-in. We all know guests don't always read what they book.