Could Robert Pattinson be the reason for Megan Fox's newly single status?The "Transformers" hottie has split from fiancé Brian Austin Green, a close pal of Fox has confirmed.Fox and Green "remain very fond of each other," the source told E! Online, "officially, though, it's over between them and has been for a while."
And it seems like Fox has moved on quickly from her "90210" beau.

The actress reportedly bragged about hooking up with Pattinson when the couple first called off their engagement, according to a source who worked closely with Fox on the set of "Jennifer's Body.""Megan was totally into [Rob] and thought he was really cute," dished the insider."But nothing ever went further than one night they were together. He totally blew her off."Pattinson's cold shoulder may be the reason behind Fox's not-so-nice jab at the "Twilight" cutie in "Elle" magazine.

"Robert Pattinson and Zac — they're just too pretty with the big hair and the suits. And Rob is, what, 22? Zac is 21? That's a joke. Boys in their twenties are a waste of time," Fox said in the May issue."They have nothing to offer conversationally; they're immature. I feel like I have a better shot with someone in his thirties."But Fox's rep denies the claims: "[Megan] has literally met Rob twice. She went to coffee with Shia [LaBeouf] the other day, so they must be hooking up too, right?"