O.k., I have a four year old male cat, who can be very mean. He usually is not mean to everyone, I think it is just when he gets jealous, like with my boyfriend. I also have another cat, and he's fine with her, she is older,and she was there first. I recently added a new addition to the family, in the form of a puppy. It's been a month now, and the cat hasn't budged in his nastiness towards the new puppy. The puppy has tried to be friends with him, but he just hisses, and swats at her. Every once in awhile, I think he's letting up, but he proves me wrong. I love my cat very much, and really didn't think it would cause him this much anxiety, but it is. I don't know what to do. I have tried to not be any different towards him, but I know it's a big change, and there is a difference. The puppy follows me everywhere, so the cat has been keeping his distance to some extent. Help.