I’ve often said one can’t go through life as a writer without having at least one devastating experience with a mean-spirited teacher, classmate, or writing group partner who knifes you with a negative critique of your work that holds no intent to help, no generosity, no premise of constructive criticism.
For goodness sake
Sorry this happened and glad I don’t even know what it was. You have your integrity, whether or not everyone in the world knows it.