Oprah Winfrey is so worried her former lover Stedman Graham will spill her secrets, she?s prepared to offer $150 million to buy his silence, it has been claimed.The pair ? who had been together since 1986 ? apparently split in August after Graham told Winfrey he was ?tired of being disrespected? and moved out of their luxury 5,000- square-foot Chicago apartment.According to the National Enquirer, Oprah is also struggling to overcome a moun­tain of personal and professional headaches.“Oprah has not been THIS unhappy in a long time!” a source told the tabloid.“She’s trying to hold herself together, but every day it seems like she gets hit with a new problem, and her world is collapsing around her.”During their final blowup, Stedman told her she needed help, but Oprah told him he was seeing a problem that wasn?t there.”Right now she?s in panic mode. She’s fearful Stedman could write a book and tell ALL her secrets. Oprah feels she needs to buy his silence and is willing to pay him $150 million!”

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