Buck, it sounds like you two have something pretty special. My wife and I have pretty different interests in a lot of things. She thinks all sports are really stupid and pointless. I'm a pretty big fan of most major sports. In some ways, I wish she shared more of my interests. At the same time, I'm usually pretty absorbed in whatever sport I'm watching at the time and having to talk while I'm watching gets old even if I like the person who wants to talk.
We have similar interests in tv shows and movies for the most part. We like a lot of the same music, but there is a lot of music that we don't agree on. I don't really think that is all that bad of a thing. It works for us.