"Jason has told Britney's entire family that he's planning to leave her, so that Britney will have a support system when he breaks the bad news. He wants to call it quits, but not their professional relationship," a source said.
Before the breakup rumor emerged, Spears took to Twitter to wish her agent fiance a very happy birthday. "There are def going to be a few more candles on your cake tonight @JasonTrawick. Happy birthday baby Love you so much!" she wrote.