3. The cats are making significant progress in coexisting. Ok, they're not exactly cuddling with each other yet. But this situation is starting to happen on a regular basis, where Imogene is willing to come sit on a lap even when Hera is already somewhere on the couch, and/or stay put even when Hera joins us on the couch.
There's still some hissing and swiping going on, especially when Hera seems to be getting ready to pounce on Imogene (I think in a playful way, not an aggressive way?) and Imogene is rightfully annoyed, but she's allowing Hera to get pretty close before being too expressive. They just might become friends yet!