Well, the stuff about keeping them apart is too late. I did keep them separated for the first few days, though. I've been trying to distract her with playing when she starts to hiss at him, and that seems to be helping. They are also using the same litterbox now and don't seem to be having any...
I have a 6 year old male cat and recently got a 1 year old female cat to keep him company. The older male cat is extremely passive and timid and has been trying his best to be friends with the new cat, but all she does is hiss and growl at him and occasionally attack him. He will roll over and...
