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Fans are now getting a chance to see what happened behind the scenes of Rita Ora and Rob Kardashian's epic Twitter argument last December. 

On Sunday's episode of E!'s "Kourtney & Kim Take Miami," the Kardashian clan explained what made Rob publicly accuse his then-girlfriend of cheating on him with "nearly 20 dudes."  While they didn't mention the 22-year-old British pop star by name, Khloe said that Rob was "really depressed" over the relationship, saying that since she was "in the entertainment industry," she "wanted to present herself to the world as single." 

Rob explained that he posted what he did at the time because he wanted to make sure she wouldn't come back to him.  He said, "I just had to do that to make her hate me."  Rob's older sisters didn't quite agree with his methods.  Khloe, Kourtney and Kim were all shown urging Rob to stop tweeting and handle things privately. 

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