Don't think it is scripted because I watched an interview they said they show the show a lot earlier than most other shows while all the drama is going on so they get all the visceral view points. Also the fact there has been violence and fights like Ramona shedding blood or whatever doesn't seem scripted. If it is scripted, it doesn't seem like the entire thing is scripted but what it could be is people playing more of a role for the camera but I honestly believe these people are really like this. Also I think if it was scripted, the only script they'd follow is basically instructions to antagonize other cast members but that's just a theory.