Somehow missed genevieve's post about Nashville! Yes I also assumed affair but that one line did indicate that there's a specific incident, and it would make sense if it was part of Teddy's failed deal - which we were reminded about in the "previously on." Good casting btw - an actress who is married to a huge country star and has become part of the Nashville scene - hope we see more of her!
I also appreciate the complexities of the characters, and I would think we've got Callie Khouri to thank for that.
And I too would have liked another song or two