We now have three cats. The oldest is 12 years old. When she was eight, we got a new little female. They still do not get along very well with accepting each other.
Now we have taken care of a small male of 12 weeks who was born in a stable and was abandoned by his mother and the family who went on a long vacation. Our old cat manages this very well but our “middle cat” is very scared.
She only dares to eat / sleep on the sofa when the little one is trapped. We try to pair them and pay a lot of attention to the middle cat, but she sticks out through the cat door. She can not sleep on the porch this winter!
What do we do? We love our cats and we have a hard time returning the little male to a lonely life in the stable that now has no horses.
We live out on the countryside and our cats go in and out as they please in our cat hatches.
Yes, it has been a difficult situation. You have done exactly the right thing by paying close attention to the cat. In any case, she does not feel threatened because you show her that.
It feels more like she’s afraid of the little one, not jealous but just scared.
If she has never met a small cat in her last four years, you understand that.
But it sounds a bit marked in my opinion. How old is the little boy now. If you have only had him for a while, you can count on it taking some time.
You could try playing with the two of them if they are any closer to each other. By playing, the middle girl may see that this can be quite fun and that there is nothing to be afraid of at all.
I suspect that the little bass is a real dizzying weather and only his speed will surely scare the mind out of the middle girl if it is now the case that life has been very calm and not including any wild little little guy who just dizzy around. Give it time and continue as you did.