In the latest judges' feud, the pair were seen arguing live on the show but it's claimed the pair are still not speaking off-camera.
A source told UK newspaper Daily Mirror: 'Gary was livid after the show. He stormed away from his seat the second the programme finished and locked himself in his dressing room.
'Gary slammed the door behind him and really erupted. He was fuming and made it clear he didn't want to join the other judges for their usual drink and chat about the show.
'Gary had been determined to keep his dignity on screen and refused to be drawn into a full row on air. He is worried the constant sniping between the judges is distracting viewers from the contestants.'