@Carmen-and-Scott0 There is a large pinned post on the first page of this Help forum, "Contact Airbnb".
Yes, it's best to never mention anyone but the booking guest in your review. They may have been having an affair or some other reason she doesn't want anyone to know that she was away with this "boyfriend".
Contact Airbnb, tell them the guest asked you to remove the review, and that you are willing to do that, as she felt it breached her privacy, and they will remove it.