My heart is broken. My cats hate each other. They used to get on fine then the third one passed away and they couldn’t stand each other. I tried separating them and introducing them slowly. Fail. I’ve tried supplements, essential oils, feliway friends, special calming collars but I am at my wits end. I have accepted that they need to be kept separate because if they encounter each other it is world war 3. Blood, piss, fur, etc. I’ve lived in a divided house for over a year. But one of them is becoming wise to slipping through and I can’t take no more. I am walking on egg shells because of it, I don’t feel like the cats are happy and it’s all pretty miserable. I am trying to navigate this situation with a soon to be one year old and I am dreading when she becomes old enough to open doors. How will I explain that? Feel like rehoming one of them is my only option. Am I selfish?