Simon Cowell has said that he realised he is a "naturally reclusive" person after his horror bike injury last year.The showbiz legend has spent years in the spotlight with his hit talent shows like The X Factor and Britain's Got Talent, but he actually prefers to keep himself to himself.Last year, Simon broke his back after falling off his electric motorcycle - and he had to be rushed into hospital to undergo emergency six-hour surgery.62-year-old Simon had been testing out the new bike in the courtyard of his home in Malibu, California in August when things took a terrible turn.The music mogul broke his back in numerous places and narrowly missed breaking his spine - an injury so severe it could have left the star unable to walk.