>>3112140Mathematically incorrect, but with the correct conclusion.
I can't imagine, what with being *your* wife, that she has serious fucking skills. So the guy who fucked her probably didn't get greater happiness than your sadness, thus bringing the total world happiness a lit lower.
However, even if he was a lousy lay, your wife was probably much happier than when she get fucked by you. So when you add in her ecstasy, yes, world happiness probably increased.