Kelly, I'm so sorry to hear this. I was having the same problem with Smokey, he was just super aggressive to Tigger. My vet gave me a pill for Smokey to take but I did not like what it did to Smokey, so what I did was tried to set uup special places for Tigger. I think that giving her her own special place will help.

What I did was I watched were Tigger frequented. She liked to spend time in the basement by my washer machine, so she got her own sleeping place down there. She also loves my closet, so again she has her own place there. I even moved her food. She is the only one who eats up on top of my couter (I know, a cat on top of the kitchen counter but it was the only place she could eat in peace). I did not have to move the cat boxes, they are in the basement and no one seems to bother her while she is doing her business.

I will keep you in my prayers that the problem is solved quickly. I wish you the best. --- Meg