I recently took on a foster cat from a local rescue organization with
the hopes that she would become a companion/playmate for my older,
diabetic, obese cat. The main fear was that my existing cat would not
accept her and become aggressive. Turns out it is the other way
around. My cat has gotten soft in his old age, and is really sort of
indifferent most of the time, curious at other times, but never
aggressive unless the new cat pushes his buttons. I think if the new
cat would stop hissing and calm down, they might be friends. Any
advice? The aggression appears to be mostly for show, because they
never really get into it. She's just acting tough, because my cat is
about 3 times her size and could swat her with one paw. The new cat is
extremely playful and active, and I just wish they would be pals.

Thanks.

sundevil67