I've been in Pompei with my fiance for a visit, not for being judged by the Karen as touristic guide.
Personally you need to choose better the people, not a person that in the middle of a visit needs to exclaim: "LA SIGNORINA VA A UN MATRIMONIO" with a strong napulitan accent. Maybe she was looking for the approval of the visitors, or maybe she's payed for judging the other people.
My dear, one thing is a comment, one thing is denigrate a person in the middle of a visit for her dress (Not your business).
And she's payed for doing that. Congrats to your rude touristic guide Pompei, do you need money to have a serious one?
The woman with Grey hair and pink t-shirt should be careful with the guests.