Thanks for the suggestions guys, I'll take a look at a few of them with her to see which ones she may like. I'm really thinking Agricola may be it... But there were a couple of suggestions thrown out there that were only about $15 or less so I may pick up two games.
We've been playing two player Carcassone the last couple of weeks every other night or so and despite cycling in and out of Carcassone New World (which we really, really like), Hunters and Gatherers, and Carcassone (with select expansions), I think we are just wanting something to break up the games a bit more. Carcassone is nice because we are able to get done with the game in about a half an hour while dinner is cooking or right before bed.
I got her playing Magic the Gathering a bit, which was a feat unto itself. She really enjoyed the Harry Potter TCG when it was released, so I thought it was going to be a natural transition over to Magic, but she scoffed at it. I have some old decks built from when I used to play pretty regularly around 97-98, haven't bought any cards since then, but was surprised at how easy it all came back to me. Unfortunately though, it was a bit of a dud, as she didn't like the flow of the game very much. Maybe another time though...
Does anyone have any experience with Taluva? I've heard that one was pretty good and the description of it seems solid enough.
Also, with us watching Game of Thrones (and her finally finishing the books up until Dance), does the LCG Game of Thrones game work well with two? I've heard that it plays best with more, but I'm curious if it scales decently.
Twilight Struggle was a good suggestion by the way, but we already have that one... For those that are looking for a solid 2 player game, its one I throw out there as well.