Those last three don't exactly coincide regularly, so take note. Infidelity isn't about sex or romance, it's about intimacy and betrayal. It's clear you're genuinely attracted to this person--but that's the very reason you wouldn't your wife to find out about even what's happened so far, right? This is less about going to sleep next to a nice looking girl than being ABLE to go to sleep next to one knowing she won't slit your throat for your pocket change. And vice versa.

Infidelity is one of the things that force painful questions on people who thought they'd permanently answered them years ago. Sometimes they make it back and sometimes they don't. Trust is a precious but fragile thing, and you only have to lie to someone once to make them doubt everything you've ever said--or ever will. It's easier to ask forgiveness than permission, but it's easier to preserve than restore trust.

So close the door now with minimal harm and hope the chick doesn't go hunting your wifes email.