After much speculation, Usmagazine.com has confirmed Jessica Simpson and Tony Romo have split. Tony did dump Jessica," a source close to the quarterback told Us. "Of course, she's upset!" 

Part of the reason for the break up after only six months? "This Jen and John Mayer thing is eating her up, and she just can't handle it — and Tony has basically had enough," a Simpson pal told Us. "She's too much to handle."

The newest issue of Us Weekly, on newsstands now, reports that the day Aniston and Mayer went public as a couple, Simpson went on a four-hour drinking binge that left her so out of it, she had to call her mom for a ride home! 

But there's a chance this on-again, off-again pair may reunite. “He’s broken up with her before, but I don’t know if they’ll get back together this time," a source tells Us. Just last month Simpson was referring to Romo as her "future husband" and he was seen ring-shopping. 

And although their relationship is done, Simpson may still have an ode to her ex beau on her new album. In the June issue of Glamour, the singer reveals that she wrote him a song called "Back in My Old Boots." He reintroduced me to myself," Simpson told the magazine. "I thought that I had to be deeper, more profound and more artsy. You change with the guys you date. Tony taught me that because he loves me [as me]. He made me feel comfortable [being myself] again," she added.

Simpson's reps haven't returned calls since denying the breakup on Monday.

Us Magazine
   I was just reading her Glamour interview last night