"I see what you're saying, but I wouldn't considered it "cheating" or "extramarital" for the single one, since a single person has no commitments to cheat against, hence the distinction between extramarital vs…"
"Play with it a little. First, imagine that in your universe, nobody ever cheats. So that's 0 hetero extramarital/amarital sex acts for women, 0 for men.
Uh-oh. Somebody did one. It's hetero, so there's 1 man…"