I'm in the same boat as you as my wife doesn't like computers and doesn't know anything about them. But what she does know is how passionate I am for programming and for creating something that I can be proud of, and because of that she is insanely supportive about what I do. In return though I believe and expect that she wants the same support from me for the things she is passionate about. So thats my advice, show her why you enjoy it, and then support her in whatever she enjoys.