Join Date: Jul 2010
Location: Cobourg, Ontario, Canada
Often it is just one incident like you've experienced that will upset a formerly good relationship between two cats. I had one such thing with two half brother and half sister cats who had grown up together as kittens. They got along very well playing with each other until the girl had a litter of kittens, and her half brother got too close to them and she attacked him. Since that one incident he had a hate-on for her and attacked her frequently, especially if I paid her any attention. They never did become friends again. When the boy died at 15, his half sister was the happiest cat and came out of hiding away and being passive and became an affectionate lap cat that she couldn't be when her half brother was around. So some cats with time do resolve their differences and go back to being buddies, but in some instances the bond is broken.
You can try and restore some friendliness by always giving them treats together or playing with them together, so that they get the idea that good and fun things happen when they're together. Sometimes it works and sometimes not. Good luck!
"There are no ordinary cats.";"Time spent with a cat is never wasted."~ Colette
"A loving cat can mend a wounded heart." ~ Unknown Author
Alkitotle aka "Alkee", "Lambie" (July 2/04 - Oct. 2/15) -- white Devon Rex
in avatar. "Always in my heart."