Still shocked by John Mayer and Jessica Simpson's split? So are people close to the couple. "Whenever I've seen them, they've been tight and together," the source, who spoke to John recently, insists. "I've never seen them argue or anything." So what caused this mysterious break up? John didn't like Jess' wardrobe choices and their long-distance limelight relationship was straining, People reports.

A reconciliation may happen before you can say "publicity stunt" -- the pair has been in constant contact, an insider tells People: "They talk to each other at least six times a day."

That hasn't stopped John from playing the field! John was spotted out partying recently, "hitting on every super-skinny girl there, and only the really skinny ones," a spy tells People -- particularly with one Asian model. (Perhaps that was a direct jab to Jess, who can only be described as voluptuous.) In the end, John didn't hookup that night.

Aww, tear.