Ever since I got a 2nd cat, my first cat somewhat avoids me. She'll come to see me, and sleep on me, but I can't pick her up. I used to be able to pick her up, but not anymore. Sometimes when she's sleeping on the couch, she just stares at me. I can understand if I just got the 2nd cat, but it's been 2 years. I can pet her, and all of a sudden, she'll bite me for no reason. Over the past couple of months, I noticed that the 2nd cat started not liking getting picked up, and starts biting me when I pet him. Just wondering if there's anything I can do to change their behavior. Thanks