This should not come as a surprise to many, but….

According to multiple reports, John Mayer and Jennifer Aniston have called it quits.

The pair have not been seen together for almost three weeks. Mayer recently took a vacation to Mexico - without Aniston - and Jen last week went out on the town with her gal pals on several nights, something she rarely does.

The Mirror is reporting that Maniston was dumped by Mayer.

"The pair initially decided to spend some time apart… before making the break official earlier this week," reports the paper.

So much for those reports that John & Jen were getting married and / or having a baby!

"There's been a bit of tension for some time," says a source close to Mayer. "They initially opted for a break, hoping a trial split might make them stronger. Sadly it doesn't seem to have worked. John took the decision to end things as he felt he just wasn't ready for the level of commitment that Jennifer deserved. Initially, Jennifer was furious when he told her of his decision but now she's simply sad - not to mention a little heartbroken. They have spoken on the phone since the split and are trying to remain on good terms. But unless John has a dramatic change of heart, it's unlikely they'll rekindle their romance."

But, don't feel too bad for Aniston, according to this report in the NY Daily News, Jen's already moved on and is already dating someone else!

[Image via WENN.]