Jennifer Aniston and John Mayer have ended their romance.

Probably.

At least that's what E!Online is reporting. Their source says the music man ended it with the 'Marley and Me' movie star last week, "when she got back from her European [publicity] tour."

Neither celeb's rep commented on the report.

One thing we know for sure, at least her favorite Friends, Courtney C. will always be there for her.