It sounds like your kitties are purrfectly happy. No loving creature laughs or plays every second of their lives. However, they can be loved every second and that’s happening there. It is obvious from your post that you are doing everything in your power to make life grand. Just do that to the best of your ability and ignore any nay sayers Cat grass? Lol Some keep it down and others don’t. Two of my cats have been kind enough to always throw up in a cat dish. Another favors my bedroom slipper! I have been growing fresh catnip and no one has thrown any of that up yet. I pinch off the new tips and bring it in for them from the hanging baskets outside. Maybe that would be fun for you both. Love, love the photo! They look very happy. It’s so great that you were able to keep them together. The bonds between cats are quite strong and precious.