D: Maybe she's just high-strung and afraid of strangers. My cat is like that. With me she's very affectionate, but she has never really accepted anyone else. When I've gone on vacation and asked friends to board her, they tell me afterwards that she hid in the closet the whole time, miaouing mournfully, and I have to go into that closet, detach her claws from the carpet, and stuff her in the pet carrier to get her home.