They have spent the last week by each other's side as they promote the latest Twilight movie, Breaking Dawn Part 1.But Kristen Stewart and Robert Pattinson have now been forced to separate, with the actress getting back to work on her new movie in the U.K, and the actor travelling to Berlin for yet another premiere.
And today 21-year-old Kristen appeared to be suffering from separation anxiety.
The star was spotted leaving Robert's London home looking somewhat glum.
Despite glamming it up at the recent Twilight premieres in London and L.A this week, Kristen was back to her usual uniform.
She made it a casual Friday wearing khaki trousers, a white rolled-up T-shirt, a black zip up hoodie and her signature Ray-Ban Wayfers.
Kristen and Robert have been spending a lot of time together to promote their latest Twilight film: Breaking Dawn Part 1.
And while Kristen's press duties may be over, Rob is still hard at work on the promotion tour of the movie.
He and co-star, Taylor Lautner, were in Berlin, Germany today for the premiere of the movie.
Breaking Dawn Part 1 had its opening today at midnight, and has already grossed an estimated $30.3 million.
This film features the highly-anticipated sex scenes between Kristen and Rob's characters: Edward Cullen and Bella Swan.
Director Bill Condon talked about the undeniable on-set chemistry between the real life couple: '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.'
The last instalment of the film's franchise, Breaking Dawn Part 2, is scheduled to be released a year from now.
Kristen is currently filming Snow White And The Huntsman in the U.K.
