You should totally congratulate him on his penis.
My husband does the same thing, but I know in his case it's inadvertent. He's really not trying to get under my skin by pointing out his need for new clothes, but it's ticking me off severely that he's "winning" the race to lose weight. Actually, you could say he's already won as he's reached his goal weight.
Never mind that the race between us was inherently unfair because he's A) male, B) greatly more physically fit than I was, C) never had extra weight on him in his life until a couple of years ago, and D) much closer to his goal weight than I was. It still vexes me.
It's a wonder you didn't clock him when he bragged about lifting more weight than you. Like, DUH, Mister XY Chromosomes, it'd be way more newsworthy if you couldn't!