"Jamie and Kate had a blazing argument in the early hours of Saturday morning. Kate made some comment about a girl who'd been hanging around Jamie and it deteriorated from there," the Mirror quoted a source, as saying.
"Just hours later, Jamie was packing his things and moving stuff out of her house. By the afternoon, most of it had gone. Kate was expected to watch The Kills play in Kent that evening but she gave it a miss and went to watch the show High School Musical instead. Her friends had to virtually drag her there kicking and screaming as she was so upset."
"Since then, Kate and Jamie haven't spoken as she has had her mobile turned off or has been screening his calls. But he's telling friends that it''s not a permanent split - it's simply that he's in the doghouse," the source added.