Wow.  Interesting.  When he first mentions weddings, I thought, "Karen's marrying Jim but she's with ROY beforehand - ugh!"  What a fun twist that this is not a future fic.  Wild!

Do you have an explanation for how Roy knows that women leave him for Halpert?  He probably only got that idea after Cocktails, right? 

It's fun to think about this scenario a bit.  If Pam had not gone home with Roy, maybe Jim wouldn't have been quite so into Karen at the wedding, maybe Pam would eventually have dorky-danced, Jim would have realized her feelings were NOT hypothetical, and... Karen could have gone home with Roy, and Pam with Jim.  YES.

Anyway, fun story!  Thanks.