Who's the man here, seriously? If your wife wants to see some other band - let her! Pick a spot and time to meet back up and do it. This is what my wife and I do.
For example - Lolla 2010 my wife really wanted to see Lady Gaga. I said, "great, I'll be posted up right here in front of the Strokes. Come back and find me (in this exact spot) when you realize just how shitty of a decision you've made." BAM - both parties satisfied!