John Mayer and Jessica Simpson REUNITE

John Mayer and Jessica Simpson’s shocking breakup may be over before it began reports IN TOUCH WEEKLY

John – who split with Jessica last Monday, insiders say, because he needed more space – was seen exiting Jessica’s hotel, the Soho Grand in New York. “He was looking really happy,� an eyewitness tells In Touch. “He couldn’t stop smiling.�

A pal of Jessica’s confirms, “They definitely went on a date last night,� but cautions that the once-divorced star isn’t ready to get back together with John immediately. “She still loves him, but he’s not stable,� the friend explains. “He’s scared of commitment. He breaks up with her and then regrets it and then begs her to get back together.�

Star now reports that Jessica Simpson’s romance with crooner John Mayer is going strong!

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Rumors of a troubled relationship began to buzz when Jessica was a no-show at John’s concert in New Orleans during the Jazz & Heritage Festival on May 5.

The duo who are known for breaking up and making up went their separate ways recently.

At the Cannes Film Festival in France, Jessica was seen flirting up a storm, while she was promoting her next film, Major Movie Star. “Jessica cut loose … she had a blast at Cannes,� says a longtime friend. Spending her time declining offers of champagne from male admirers, “she looked like she was having a good time.� Said producer Rolf Dahmer, who was involved with three films at the festival.

Meanwhile, John was seen partying at NYC club Stero and “…hitting on every super skinny girl there,� says a report.