She who is disliked by many

A woman (who everyone dislikes) who is married to a good friend (who everyone likes) of yours. The friendship you have with her husband keep her around the group of friends.
The growing dislike of the woman gets to a point where even the name of the woman conjures up such pain that it is decided her name will not be spoken (like the Jewish -od for God) and instead 'she who is disliked by many' is replaced when speaking of her within the group.