Is anyone surprised?
They are the most boring couple ever, of course some cheating would go in the background.
She should just dump him, and continue her modelling career after the dire 6 year pause, in which she has been just a parody of a fashion model in a fake-dreamy relationship. Then, marry a non-douchebag, non-B-celeb, with at least an ounce of personality.
Truth hurts.