The dogs (and cats) miss Rita. Zoe is constantly looking for her, going out front to the car, waiting for her to get out, sitting on the porch looking at the driveway for her to arrive. When she is inside and needs cuddling, she snuggles up with Sue.
Sue is just missing somebody to play with her or feed her. But she she goes outside, as she just gets outside, she turns her head and looks for Zoe as if saying: “Arn’t you comming?”
They are great friends.