John Mayer Cheated on Jennifer Aniston, Three Times
John Mayer is our weekly box of douche. Apparently for Jennifer Aniston, third time's a charm, or whatever the opposite of charm might be. Aniston sat back and allowed John Mayer to cheat on her three whole times (with three different women) before calling it quits.
...Aniston gave Mayer a "three strikes and you're out" ultimatum -- after learning about his "quickie" flings with a cocktail waitress and a promoter's assistant for his concert tour.
That was two strikes. Another dalliance, with a groupie, was the final straw for Aniston. (source)
Not only will this ruin her Hollywood image, it will most likely allow other potential dates to screw her over as well, literally and figuratively.