I can see that idiot having already burst his pants button by the time he looks into the mirror, but despite the evidence that he is significantly fatter than he is used to as the flaps are tight against his lower belly even while spread apart, he simply chalks it up as being particularly bloated that day.
His T-shirt barely reaching his belly button, his jacket unable to close, his pants struggling with fitting over his thighs and ass, the sleeves of his jacket squeezing his arms a bit, his rounder cheeks and double chin, obviously it's all just bloating and a bit of temporary weight, nothing to be worried about as he starts another day of oblivious gluttony~