READ MORE: Michael Jackson and Madonna romance - 'I loosened him up with wine'Tarborrelli was adamant there was no sexual relationship between the pair, however.
Despite this, Michael was reportedly "heartbroken" when Diana remarried in 1986. The star married a Norwegian multimillionaire named Arne Naess.
Envy ran through Michael, prompting him to boycott her wedding. Michael later told Taraborrelli: "I was jealous because I've always loved Diana Ross and always will. "Nevertheless, the King of Pop remained a close friend of Diana and the pair were a part of one another's lives until he died on June 25, 2009.
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