With all these dogs around, I'm scared to talk about JoJo the cat.
But she loves her new brother, Quinn the fish. HB brought her fish when she moved in (sadly, she lost her two cats in the "divorce") and I was worried about JoJo. But she doesn't jump normally and doesn't go after him at all.
She does however, meow at the top of her lungs when I get home and feed him! She's jealous! It's so cute. So I pick her up, she lays across my arms and she paws at him through the tank's glass. Then she gets tired of it and jumps down...
Until he moves.

Then she watches him from the floor.
HB wants another cat. JoJo feels like my cat, although she loves her, but I've tried the other cat thing once with JoJo (it was her sister) about a year after they parted ways and her sister went after JoJo and she didn't take too kindly to it.
Any other cat lovers out there want to give me advice? I'd love another cat, especially to keep JoJo company when we are at work. But I am afraid to -- not only for JoJo's sake but my sanity. Little kitties chasing after one another and all. JoJo is 3. Maybe get a younger cat???