Well, if you've already told her that it's just like any other hair style that you can wash and keep sparkly clean on a regular basis, perhaps just try locking your hair up with hair gel and the technique described on the site so you get the look and she can check it out for herself. She may change her mind, it's amazing how dramatically it changes a persons overall look - for the funkier and better. Then if she still hates it, you tried, and you can just wash the gel and knots out with hot water and a lot of conditioner.