It is obvious that Gary has become uncomfortable with the show, probably the manouvering that goes on behind the scene and his scripted role.
I don't believe for one minute that he picked Frankie for example, and he seems very unhappy that a teenager has been used and spat out by the show in order to make headlines and keep teen watching.
He is under contract and cannot say what he wants, and certainly not turn round and give away the behind the scene secrets. Of course, he wansn't forced to sign, but I am under the impression that none of the judges realised what they were in for, and all of the are desillusionned.
So I am waiting for them to resign at the end of the season, and I'll have lost any respect for those who don't.