Sorry, I don't want O'Brien to leave. It's the conflict that makes the show interesting. I don't want only "nice" characters on the show. I liked how she took down Susan's maid, but she did it only after she had a good reason. I loved seeing Phoebe Nicholls, if only for one episode. Her character was a nice echo is Elizabeth Elliot in Persuasion, although it seemed a bit like typecasting. She's SO good as a shrew!
CCL - I hope you're right about Rose. I thought her teaching Anna to dance was very sweet. If she starts showing an interest in Jimmy (or Tom), I'll be really annoyed!