Contemplate he's not over-reacting, at least not in his world, maybe this is status quo for him, maybe he's giving you a glimpse inside who he really is. Think about it - take your time, but if you finally agree that he's quit putting his best foot forward like we all do - its natural - but maybe both this guys feet are the same and you're seeing it. Maybe he's a histrionic and over-reacting is his bread and butter - time to figure it out - the truth, not what you want it to be but the real truth.