Wow @Nancy344, what a long haul of stress over your guests. Getting a bad review from them is a toss as you are not sure what either will say. I suspect Guests #2, who moved the items in the room, may not give the best review as you did call them out.
First make sure you take a day or two to think about what you want to write. Also make sure you have done a full inspection of the rooms to know that there is no missing items or damage. I usually write a draft in WORD on the computer so I can read it, and make sure it is what I want to say before I hit the send button (then copay/paste to the Airbnb site). If the guests were not horrible, but someone I would not want back, I usually start out with some positive and then end with a neutral or not so good. If either guests write you a negative review you can post a comment but again, don’t accuse or write a detailed rebuttal. Just sound like a good host and state your comment. You can play the wait and see game and if they do not post a review, post your reviews on the last day near the end.
If guest # 1 Grumpy-pant did not break any house rules and left the room clean then I would be neutral on the review.
“Grumpy-pants” was a guest for ? days. While here she preferred to keep to herself and was self sufficient. I did my very best to accommodate all her request concerning her allergies and ? (other complaint) but I feel that I was unable to accommodate all her wants and needs. She may be better suited for a hotel where the staff can assist her.
I would give her a 2-3 for communication and a thumbs down.
Guest #2 Since they may have broken house rules, again, be neutral, but I would not write what you suspect. I just would say something like
? and ? had a short stay of ? days. They were polite and left their room neat and clean (if they did). My place is has several guests at the same time and while there is no curfew, the late time returning may have been difficult for my other guests. ? and ? might be better in a Airbnb that allows for more privacy.
I would private message Airbnb your suspicion on the extra guest or use of the room. Also thumbs down.
You don’t want to cause attention to bad reviews but as a host I would look at both of them and press the decline button.
Good luck!