I'm happy to report some progress! After letting the cats see each other with one in the cat condo and one out for a few nights, we tried letting them eat treats a couple of feet apart. There was some initial hissing but nothing too bad. The Feliway diffuser is still going but we haven't...
In my case, our sister cats were both spayed when they were young. After 5 days of not seeing each other at all, last night we started putting them in the same room at night. One is loose and the other is in the kitty condo where they have slept together for the past 7 years. We are switching...
We are currently having a distressing problem with non recognition aggression not related to a vet or groomer visit also! Our 7 yr old sister cats have been best friends all of these years. They sleep together in hammocks in a kitty condo and often share 1 hammock or lay across each other...