12/27/2012 09:09 am ET Updated Feb 26, 2013

Chris Brown And Rihanna's Most Controversial Moments Of 2012 (PHOTOS)

Of all the complicated relationships in Hollywood, perhaps the the most head-scratching is the one between Rihanna and Chris Brown.

This year, especially, the R&B singers brought their troubled romance, which ended abruptly in 2009 after Brown brutally attacked Rihanna just prior to the Grammys, to the forefront as they tried to make amends, or rekindle their spark, or -- oh, who knows what they're doing anymore?

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