[Gemmachi]

I think Natalie was also jealous because CBB was something she really wanted to do, while the twins had probably never heard of BBUK before. Yet the twins made it further than her and were clearly much better & more entertaining/memorable housemates than her. The only times that Natalie was "entertaining" were when BB gave her a task. When left to her own devices she was boring. I don't think she expected to be out before the final, especially since she was in her own comfort zone having already known many of the people that were going to enter the house beforehand. So it came as a shock to her that the twins & Michael could get more votes than her.