Hi and welcome to Pet Talk. What a wierd situation there!! LOL LOL I was actually talking to a friend last night who was telling me about her mom's cat. She said that her mom's cat hates her and does just about the same thing your cat does with your friend. She says that she thinks that the cat associates her with a really bad memory. I can't remember what happened, but something seriously injured the cat, and she was the one that was around. So, she thinks her mom's cat associates her with something bad happening. She even said that the cat is acting that way toward one of her aunts that looks like her. Maybe your friend resembles a unpleasant person in your cats past? Where did you get your cat? Or maybe something happened to your cat when your friend was there? In any case, that's a very interesting question! I hope some other PTers have some other ideas because I'm curious too!
Welcome! I'd love to see some pics of this fascinating feline