Personally, I think they were too easy on Courtney. They didn't go after her like they did Michele Money and Michele at least showed a little humor when she was snarking. And she mingled with the girls in the house, rather than shutting herself off from them almost completely like little Miss Model did.
And yes, a big part of this show is scripted but Courtney was exceptionally horrible. I can't imagine she would "put on a show" like that for the audience knowing it would make her look bad and reflect poorly on her loved ones. I think that's the way she truly is and she didn't take into consideration for one moment how her family and friends would suffer from it.