I have two cats that used to be best friends. About 1 1/2 years ago there was an episode of redirected aggression and ever since there have even recurring vicious bouts. I do the recommended separation and reintroduction process which usually works for about a month. Something just keeps re-triggering the female to go bonkers. Lately the separation doesn't seem to work for very long. She gets crazy over every little thing now, and goes at the boy with a vengeance. They are both fixed and in good health. Someone kindly suggested using Feliway which I will try but I really have my doubts. It's REALLY bad and I'm thinking about rehoming her which will absolutely crush me. If anyone has any advice I would greatly appreciate it. Im desperate at this point. A lovely lady from Craigslist suggested this site to me after reading an ad I posted there. Thank you, and God bless . . .