Are they or aren't they? Cheryl sets tongues wagging by flying Derek Hough to the UK to cheer her up

http://www.youtube.com/watch?v=0YcueyErfwkendofvid[starttext]By KATIE NICHOLL Just good friends?: Cheryl Cole and Derek Hough pictured together in AugustCheryl Cole has reignited rumours about her friendship with dancer Derek Hough – by flying him over to the UK from America to stay with her.The 27-year-old X Factor judge begged Hough, 25, to cheer her up after she was lambasted by viewers for