The stunning model was furious when she walked in on the pair at The X Factor mogul's mansion in Los Angeles, the Mirror reported.
According to E! News, the 41-year old model was 'shocked and livid' when she found the pair together at Cowell's lavish home as they had always maintained they were friends, but there was nothing platonic about their relationship.
Sources claim that 53-year old music mogul had admitted that he was smitten by the brunette socialite which resulted in the former Baywatch starlet storming out of their 6-month long affair.
Electra, who worked with Cowell on Britain's Got Talent, recently expressed her happiness on hearing about the 'Syco' boss's impending fatherhood.
--ANI (Posted on 15-08-2013)