Definition: In this task, you will be presented with a passage and have to answer a question based on your understanding of the events inferred from the passage. Try to find the best answer that is most likely to fill in "_". Note that the URLs in the text have been replaced with [Link].
Input: (CNN) In 2009, Chris Brown was arrested for viciously beating his then-girlfriend, fellow singer Rihanna. Afterwards, Rihanna famously told Oprah Winfrey that she forgave Brown, and insisted he "made that mistake because he needed help." But Brown continued to find trouble. There were public brawls with other celebs and a 2013 arrest for punching a man in the face on a Washington, D.C. street. On Tuesday, the singer was back in the news, this time accused of threatening a woman with a gun at his Tarzana mansion. Police swarmed his home for an hours long standoff which ended with Brown's arrest on suspicion of assault with a deadly weapon.Brown has had a troubled history 
 Question:His fame grew even more once he and _ began dating in 2008.

Rihanna