The National Enquirer says that Vince Vaughn is hatin’ on John Mayer for hooking up with his ex. Although we all know VV treated Jennifer Aniston poorly, apparently he is the only one allowed to do the ol’ ‘wham bam thank you ma’am’ with Jen. 

vince jennifer john

According to National Enquirer magazine, Vince called Jennifer and said: “You can’t be serious – this guy is just using you to make a name for himself.”
Apparently Jenn was “highly amused by the whole conversation” and “she told Vince that in case he didn’t notice, John already had quite a name for himself – with or without dating her – and if Vince didn’t like the reports that were surfacing, he should stop reading the papers and spare himself a heart attack!”

JMay must know that he’ll catch major flack if he dumps all over Jennifer, but given his track record its hard to think he’ll do anything but hurt her.