Jessica and John Split Up Again

I guess this explains why Jessica has been looking a little down lately, and getting into her sweats — People Magazine have had sources tell them that Jessica and John Mayer have, sadly, split up yet again. They write: “It has been rocky and it had been rocky, and it reached the end of the road,” a source close to Mayer tells People mag. “It is definitely over – the relationship has ended.”

Those on Simpson’s side confirm that the romance has come to an end, but say the door is always open for the pair to reunite.

“They broke up Sunday night, but who knows what the future will hold,” says a Simpson source. “This is the twelfth time they’ve broken up. Their relationship is volatile. Last week they felt better than ever. This week, things are rocky. Who knows what the future will bring. ”

Simpson, 26, and Mayer, 29, have been together about a year, though were coy about the relationship until recently.

Just last month, the couple split, but then only days later appeared to have reconciled after a heavy round of emailing and talking.

“They tried to make it work. They dated for a year,” says the Mayer source, who adds that the couple’s time together in New York and more recently in Cabo San Lucas, Mexico were an attempt “to talk things over.”

But that was then. Now, says the source: “Its over.”

Simpson’s pal says the singer is “used to” the back and forth with Mayer by now. “She love [John] but she has to be true to herself.”

As for any reason’s behind this most recent split: “Every relationship has its differences, but with Jessica and John those differences were starting to become more and more apparent,” says the Mayer source.