I agree with Noahsmommy-It took us that long for our two kitties to adjust too. Yum Yum was about 4 or 5 months old maybe older when we got Dutchess who is 5 years old. Dutchess would always his and sometimes still does when Yum Yum would be near other cats especially when she goes to the vets.
Good luck, and just remember that it will take time!

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