Jessica Simpson New Pal Kellie Pickler: John Mayer Hit on Me!

American idol honey Kellie Pickler and former John Mayer sweetie Jessica Simpson have developed into BFF's reports the National Enquirer.  And with that Jess has been poring her heart out to Kellie over the break up, a source cited by the magazine claims.  The problem in the relationship, according to the source was John's jealousy and Joe Simpson.

Jessica Simpson New Pal Kellie Pickler: John Mayer Hit on Me!

The Enquirer reports it learned the two blonde stunners rendezvoused for girl talk at an exclusive club in Dallas on June 7 - and Jessica made a tearful confession, a source told the magazine.  She sobbed to Kellie: ‘I really loved him, but I’ve never known a man so jealous!’  The source added, "Jessica also said John despised her father and was obsessed about her seeing other guys."

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The magazine reports: Kellie, 21, sought Jessica’s friendship after she burst onto the pop music scene following her stint on “American Idol."  During their recent heart-to-heart, Jessica, 26 told Kellie that at first she thought John’s obsessive attentiveness was charming, but then his firs of jealously over other guys “got old quick.”

Kellie listened sympathetically - and then made a chocking confession of her own, says the source.  “She told Jessica that John once hit on her when he was still together with Jess , and she added:  ‘The guy’s a major rat.  Honey, you’re better off without him!’”