Welcome to PT Mommacat.

We all love our cats very much here. I know what you mean about a cat regressing into themselves, because our Allen (a 20 pound orangie) was best buds with aour small dog who died two years ago. He started to become very quiet and withdrawn. Our other dog tolerates Allen but won't play with him the way Sammie did. Quite by accident we adopted Pouncer; Allen woke up from his sleep. He's now outgoing and the loving charismatic cat he once was.

How can you get you sweetie back to herself? As Jen said, a month is not that long of a time for the two to get to know each other. Sounds like Clayton wants to become friends with Shadow. Its hopefully a matter of time before she makes nice with him. She's probably still upset that her home is invaded by a newcomer and resentful that you are sharing your affections with him. My Nicki (the big dog) is still jealous of Pouncer - and he's been ruling the house since July! Sometimes I wish we could just talk to our pets and ask them what's wrong... and get and answer it return!