British pop star Rita Ora broke up with her boyfriend of one year, fashion designer and rapper Ricky Hil, E! News reported. The "Black Widow" and the son of fashion mogul Tommy Hilfiger have not commented on their split, but a source told E! that the decision was mutual.

The 24-year-old singer and co-host of British music competition reality show "The X Factor" may have caused the split with her flirting habit, a source told Page Six. Hil, 25, became "troubled by her flirtatious behavior with other people in the music business and on her show, 'The X Factor UK,'" the source said. But other sources cite busy schedules as the real reason behind their breakup.

"Rita and Ricky have split for good this time," a source told the Daily Mail. "It is amicable between the two and they both made the decision to call it a day due to their work schedules."

"They've been on and off for a while," the source continued. "He's based in L.A. and she's based in London. Now that she's doing 'The X Factor' and has her new album here, she will be here for the rest of the year. But he has commitments to his music career and fashion line overseas, too."

The pair started dating last summer, shortly after Ora broke up with DJ Calvin Harris. Harris is now dating pop star Taylor Swift.

Ora and Hil were both seen out with other people over the weekend, according to the Daily Mail. Hil was seen leaving the Greystone Manor supper club in West Hollywood on Sunday with an unknown brunette, and Ora was seen with a male friend in London before her concert on Saturday at the Echo Arena in Liverpool. Despite the separate outings, there doesn't seem to be any hard feelings between the exes.

"It has been an amicable split," another source told the Daily Mail, "and they remain friends."