John Mayer is no ‘friend’ of Jen‘s!

He’s making his second breakup with Jennifer Aniston even uglier than the first, charge sources.
The 31-year-old rocker has wasted no time getting back on the dating merry-go-round. Not only is he hitting on nearly every attractive woman who crosses his path, John’s bad-mouthing the 40-year-old Friends beauty to anyone who will listen, say insiders.

The Los Angeles-based emo-pretty boy rocker has belittled Jennifer publicly and even in a new song.

"John’s been recording in a studio and coming on to almost every woman in the vicinity," a close source told The ENQUIRER.

"He goes on and on to these women about how clingy and needy Jen is. He says that when they got back together after their first breakup last August, it was agreed she would back off on the smothering.

"When someone tries to change the subject, he goes back to Jennifer, claiming she was so emotionally dependent and demanding that he couldn’t take it."

To make matters worse, following his latest split with the Friends star, John penned a thinly veiled put-down song directed at the actress called "Heartbreak Warfare" for his upcoming CD Battle Studies.

John doesn’t mention Jennifer’s name in the song, says an insider, "but everyone knows he is talking about her."

 "Jen ended it with John because of his wandering eye, blabbing about their love life, putting career before love – and refusing to live full time with her or put an engagement ring on her finger.

"In the end, his immaturity was just too much for her."