Reality TV isn't fictionally scripted, contrary to what a lot of people seem to believe, but it is highly manipulated. Sometimes scenes are shot over and over and producers will tell people how to say certain things. In a lot of ways, that's still fake so I get the accusations.
That being said, the latest show being accused of fakery is Couples Therapy. The forthcoming season (which premieres tonight at 9 on Vh1) stars Ghostface, Farrah Abraham, Jon Gosselin, Taylor Armstrong and their respective booskis but Farrah, of Teen Mom fame, will be appearing alone. The reason for the latter is because her boyfriend allegedly pulled out of the show at the very last minute. He claims that he didn't hop on that plane to LA because he didn't want to walk into what he felt like was a fake situation.
He told Radar that not only did Farrah ask him to pretend to be in a relationship with her so that she could get on the show but that producers make up scenes. How would he know that they make up scenes, right? Well, there's a scene in one of the show's trailers where Farrah says, "I think he did this to purposely hurt me," about his absence.