Britney Spears is once again single, breaking up with Jason Trawick.

The 28-year-old pop princess and her talent-agent boyfriend called it quits at the end of February after about a year of dating. Said a source, “They were fighting a lot and have not been getting along.”

William Morris Endeavor Entertainment, where Trawick plies his trade, confirmed Tuesday that the 38-year-old agent is still representing Spears. A rep for the Spears has not yet responded to a request for comment.

Meanwhile, this isn’t the first time the business-and-pleasure-mixing duo have required some time apart.

Spears and Trawick cooled off over the holidays in December, but rekindled the flame in time to attend the Grammys together on Jan. 31, where Spears was nominated for Best Dance Recording for “Womanizer.”

They were last seen in public together on Valentine’s Day at a McDonald’s drive-thru in L.A.

“They both just needed to take a break from each other. It wasn’t working out.”

This isn’t looking good… it’s reported that Sam Lutfi is waiting for her conservatorship to end.

source: Britney Spears Back to the Circus of Single Life [e! online]