Rihanna has opened up about her split from Chris Brown in 2009, claiming she lost her ``best friend''.
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'I lost my best friend':
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Rihanna asks Chris Brown to issue public apology
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Chris Brown: 'I'm in love with Rihanna and Karrueche'
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Britney and Rihanna work together
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Rihanna & Chris Brown reunited?
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Rihanna is playing the field:
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Chris Brown posts picture with Rihanna
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Rihanna and Chris Brown secretly dating again?
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Brown says he doesn't remember beating Rihanna
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Lambert splits from boyfriend
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Rihanna not dating Colin Farrell
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Rihanna fires manager
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Rosie O'Donnell defends Chris Brown
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Rihanna still misses Chris Brown
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Rihanna will testify against Chris Brown
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Rihanna develops crush over Cheryl Cole
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Rihanna confirms working on sixth album