Rihanna and Chris Brown reportedly split up, again.

Who broke up with who and why?

On Monday, E! News confirmed what Chris Brown said on a radio interview on March 29 - That the two have split up again. E! News was told by a source representing Rihanna confirmed the break-up, saying she wanted to focus more on her career.

During the March 29 interview with Power 106, Brown was asked if he was still with the singer, he simply replied "uh, no."

When Brown dumped model Karrueche Tran later that month, his relationship with the "Diamonds" singer was confirmed after speculation that the two rekindled their relationship.

It garnered a lot of media attention because the two broke up when Brown assaulted Rihanna, which lead to a restraining order and his arrest in 2009. Ri Ri said late last year that things have changed. Chris Brown has changed of he once was.

"When you add up the pieces from the outside, it's not the cutest puzzle in the world," she told Rolling Stone in January. "You see us walking somewhere, driving somewhere, in the studio, in the club, and you think you know. But it's different now. We don't have those types of arguments anymore. We talk about shit. We value each other. We know exactly what we have now, and we don't want to lose that."

It lasted only a little while, but it's over. As the two attempt to move on, Chris Brown was spotted with a waitress at an L.A. Playhouse, TMZ reported.