Robert Pattinson and Kristen Stewart met on the set of Twilight

Robert Pattinson hasn't spoken out about girlfriend Kristen Stewart cheating on him and Twilight fans are hoping he's not suffering too much after moving out of their LA home.

Only a couple of weeks ago, Rob was on great form at a Comic-Con press conference, joking about what he'd do with best-selling erotic novel 50 Shades Of Grey.

'I would just sit there and lick the pages,' he quipped. 'What, are we live on?'

Kristen insisted it 'would be disgusting' to read 50 Shades in a book club with co-stars Rob and Taylor Lautner, but it's an interesting suggestion as author E L James started writing the steamy story as Twilight fan fiction.

R-Pattz, 26, and Kristen, 22, who met while playing the roles of Bella Swan and Edward Cullen, kept their romance very private - until this week's shock revelation.

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