if he was making a move, about which you were 95% certain, then for him to push in early position on the turn isn't really unexpected. it might have even been one of those moments where he decided to push no matter what card came. so if you thought he was making a move then you probably have to call there.

do you ever re-reraise the flop in situations like that? w/ AQ i actually like to raise again there. if he's messing around he'd better knock it off and get out of the hand. and then you don't have to get that damn K scare card out either.