According to the Chicago Sun Times, Aniston’s friends, particularly Courteney Cox-Arquette, are worried about her relationship with Mayer.
"Jen’s friends are just worried that she will again be hurt by John. … Granted, this isn’t as serious as what happened with Brad [Pitt], but it’s a shame she’s attracted to a guy you know is not around for the long haul,” said a source.
The same source believes that John Mayer, 30, will have a new girlfriend by Christmas.