"There you go," she said. "You already are the kind of guy you aspire to be. If you're in a relationship then all sex within the context of that relationship is fine, including when other people join the fun. And everybody winds up being attracted to people outside their relationship; the difference between people is what they do or don't do about it. In your case, you stay faithful."

I thought about that. What we had was much more complicated than the usual 'one man, one woman, no sex with anyone else' formula, but Dawn's reasoning pretty much nailed it.

"Thanks," I said. "That actually helped."

"You're welcome," she said...