I agree that Ramona is jealous of Kristen. When they were at the dinner party, before the others arrived, Ramona told Mario where to sit, and it was something about being able to see Kristen because he likes looking at pretty women, and Mario kind of laughed in agreement. I think I got that right. Kristen unwittingly, by existing, is winding Ramona up. Throwing anything should get Ramona booted, let alone an oar. I've always found her to be vile, but she gets worse and worse.
I like that Heather goes where she wants and has a great house in a gorgeous location where she can have a relaxed. So what if "no one goes to the Berkshires." Great reason to go. Heck, I have a neurological issue that makes me not able to sweat or regulate my body temperate, so no A/C can be dangerous. But short of risking hospitalization, I can work around it when I need to. Any sympathy I would have had for Ramona was washed away in the constant torrent of complaints about every single thing.
Too bad it wasn't Heather, Kristen, Lu Ann, and Carole. They would have had a blast. But then, this is their job, so at least they get paid.