According to Showbiz Spy, Twilight star, Kristen Stewart went mad after she was asked if she was dating her co-star Robert Pattinson, at a London Fashion Week do.

The 19-year-old reportedly stormed off, telling the reporter, “That’s none of your business.”

A source told the site, “Kristen went mad.

“She was very, very rude.”

We all know that Kristen doesn't enjoy being in the limelight and she voiced her feelings in an interview with Grazia last year.

“It [my life] has become like a ridiculous soap opera that seems real but you’re not quite sure.

“You’re caught in this dilemma of wanting to be a normal person and knowing that if you do go out and have fun that it might turn out to be a big story.”

We're not quite sure we believe this report but do you think Kristen could avoid so much attention if she and Rpatz went public with their alleged relationship?

Rob and Kristen: Loved up from the start...