Happened to me. I took the high road. I did let her know she had some things related to her biz that made it easy to find her real identity and that the website registration was not private and had her real name with her parents address.
I assured her my discretion but did not see her. Discretion is the cornerstone of the hobby and she was "too close to home". Sure enough, she got outed to her folks by her boyfriend. My lack of involvement may have turned out to be a good thing for me. I do not know what all the parents were told, but boyfriends are often too easily get access to all their info, emails, etc.