Thanks for your help everyone. Sheba is still acting the same way, and even getting a little aggressive towards me at times, but I still love her. Kiara has adapted well. She bonded well with both of us and is bringing us presents on the steps... grasshoppers and birds, yummy! Sheba stays away...
We had three cats. One was Ebony, a black male cat who was 5 years old and neutered. Mainly an outside cat and dominant one in his territory. Then we brought home our Siamese cat Sheba as a kitten and Ebony adjusted to her. We didn't get Sheba spayed in time and she eventually had two litters of...