Kano - these people are talking fuckin nonsense. Congrats bro!! Your wife initiated a fuckin threesome - where I come from that is a good thing. Fuck this feminine logic shit, it was her idea, she said even before you went out - when she was stone sober -that you could do whatever the hell you want to her so she was already down for a crazy night. It sounds like the woman you married is cooler than you thought bro. She may have a little remorse for it, sure, but just tell her its all good you don't think any less of her and what happened in that hotel stays in that hotel.
I'm just a little disappointed your post was 90% about how it got to the threesome and then no details. Was there any girl on girl action? did you eat out one chick while bangin the other, did you given them a Belgium shoelace twister? Come on man, you got to remember somethin about this memorable night!!