Jennifer Aniston’s real-life “Friends” have become worried about the single thirty-nine year old’s relationship with habitual celebrity bedder John Mayer. Aniston, who was snapped snuggling up to Mayer on several outings in Miami last week, has remained mum on the nature on her relationship with the musician. But Jen’s pals are doing the talking for her, and they aren’t pleased with actress’ current choice of Romeo.

“It’s not that we don’t like John, it’s just that he does have that reputation as something of a serial dater who never sticks with one woman very long,” a friend said in a published report.

“It wouldn’t be a big deal if this was just a casual thing. But Jen isn’t into ‘casual’. … She wants a real, solid, genuine relationship.”