I should have clarified better. When I said she's being "mean", she's hissing at him, walking away from him when he comes over to sniff her and say, "Hi", or if he tries to poke at her to see if she wants to play, she growls at him until he feels bad and walks away. It's really quite sad cuz' you can tell he doesn't understand why she's not being nice all of a sudden. But, she's not hitting him or biting him or anything like that....she's just being very RUDE!