Having your wife talk to him might be the biggest chicken ##### move you could make. What are you thinkin', guy?
If she is telling the truth, you're going to leave it up to her to confront the guy that took advantage of her? Not to sound all Neanderthal, but you're supposed to be the man in your relationship. You're supposed to protect your family. If she doesn't remember, what's she going to say anyway? "Ummm, hey Steve. My husband seems to think we did something in the bathroom at the campground but I don't remember anything. Oh, we didn't? Ok. Sorry to bother you."
You're the one that's managed to piece this story together. You need to confront this guy. And yes, it'll be uncomfortable. And yes, it could escalate. And yes, you're going to have to be incredibly assertive. But you are in a better position to handle anything that might come up than your wife.
Wish you the best. You talk to Steve. You and your wife talk to a marriage counselor.
This is why I refuse to vote in his poll.It's pretty much the worst option you could think of, and that is what he is doing.
MITYH, tell your wife right now under no circumstances is she to talk to Steve. Tell her you've been mulling it over, and you want to talk to him yourself, face-to-face, and that if you find out she contacts him before you do there will be hell to pay.
As for the wedding, I don't know how happy I would be if one of my guests took the opportunity at my wedding to handle his dirty laundry, especially something this potentially explosive.
Touch decision though.
Go, don't go?
Confront Steve there, don't confront him there?
There's no easy answer in this, but if you can get to him before the wedding it would be ideal.