Robert Pattinson, Kristen Stewart Reunite in London, LA (video) 1“Twilight” star Kristen Stewart and Robert Pattinson apparently have been separated a little too long. Kristen was reportedly spotted on her way to Rob’s West London apartment for a down low reunion yesterday.

Kristen has been busy in Wales filming “Snow White and the Huntsman,” while Rob has been on a publicity tour in Europe for “Breaking Dawn, Part 1.’

Ashley Greene has been standing in for Kristen while she’s tied up filming, and Kristen has likely heard about some of the more salacious Internet gossip that she and Rob hooked up in Sweden.

But there is no evidence of that, and it obviously hasn’t kept Kristen away. The Twilight star was said to look exhausted as she entered the building around lunchtime.

With no make-up on her complexion and her long dark locks dishevelled, she dressed in an over-sized baggy charcoal sweater, according to London’s Daily Mail.

Rob reportedly showed up at the apartment two days ago during a thick London fog.

Their London rendezvous, however, was short lived. Rob is scheduled to be in Los Angeles today (Nov. 2) to tape his appearance on “Jimmy Kimmel Live.’

The interview will air on the Nov. 9th. The show is taped at the former Masonic Hall right next door to the El Capitan Theatre, right across the street from the Hollywood & Highland center.

It’s a few steps from Kodak Theatre (where the annual Oscars show is held) and Grauman’s Chinese Theatre.

Kristen is scheduled to appear the next night (Nov. 10) so they probably traveled together.

Kristen is slated to join Rob when they promote the film in the United States. The North American debut is just 16 days away.

They are reportedly set to walk the red-carpet together this month at the film’s Los Angeles premiere.

Check out the video from Rob’s most recent interview from his European promotional tour.