FED UP with 30 years of foot-dragging over getting married and troubled by the lesbian rumors dogging her, Oprah Winfrey’s exasperated beau Stedman Graham is finally dumping the billionaire entertainment tycoon, insiders tell Radar “He’s ready to kick Oprah to the curb and leave her for good.” “He’s bitter and humiliated after waiting decades for Oprah’s hand in marriage,” the insider explains.