Lacey ~ Boy do I understand your frustration. I hope that with a little more time, they can agree to disagree. We've had Halo for 2.5 years and Cammie for 2 years. They no longer hiss and spit at each other but are never going to be friends.

Cammie is scared of Pepper. She hissess and spits all the time and Pepper thinks they are playing. Halo and Pepper have a sibling relationship. They play hard and fight hard.

It took them a long time to work out their differences. I hope that Mowgli comes out of his shell soon and gets back to his old, happy self. I would be careful about who gets your attention first.

I'd greet Zelda first and give her a snuggle and then Mowgli and then Kahlua. This helped with Cammie and Halo. Once Cammie got some reassurance that she was still "queen bee", she calmed down. Once, I screwed up and snuggled Halo first. When I put her down, Cammie picked a fight with her just to reinforce her place.

We've never had any luck with Feliway but others have had success. It might be worth a try.