Kristen Stewart has been seen walking around in London seemingly upset over Robert Pattinson having to go to Berlin. After having spent a week by his side in order to promote the latest Twilight movie, Kristen Stewart is currently working on her new movie in the U.K, whilst Pattinson had to attend another premiere in Berlin.

The 21-year-old actress 'appeared to be suffering from separation anxiety' according to The Daily Mail as she was spotted leaving Robert's London home looking down and upset. She had dressed down in khaki trousers, a white rolled-up T-shirt, and a black zip up hoodie, especially after looking glamorous for the recent Twilight premieres in London and L.A this week. Robert Pattinson is still working hard to promote the movie. He was joined by co-star Taylor Lautner for the German premiere.

The latest movie in the franchise, 'Breaking Dawn: Part 1', has already grossed an estimated $30.3 million in midnight screenings. The film features the highly-anticipated sex scene between Stewart and Pattinson. Director Bill Condon stated: "It's crazy how close they are. It's wonderful and... I feel as though because they're more relaxed with that, it added something to the movie, too. Because obviously, this is the part where they are together, and that's something they didn't have to act." KIRSTEN STEWART will appear in 'Breaking Dawn: Part 2' next year, whilst also leading the fairy-tale adaptation 'Snow White and the Huntsman' with CHARLIZE THERON.