If she can't understand that you like computers, and that it is something you enjoy playing around with in your spare time, then I think you just need to have a serious chat. She probably likes shopping lots, just explain that its the same for you, but with computers. If she doesn't understand that, then she is obviously too egotistic to realise that you have needs too, and you should get rid of her!
AMD Phenom II x4 970*
*Won at a Xmas party raffle.