No, Mike, you are not alone. There are many others in your position. I am much older now, but as a child and teen, I was an avid bed and diaper wetter, so I hope my experience can help you. Except in the case of physical disability, a 15-year-old should not have to be diapered by an adult. It borders on emotional abuse. Please be a little more specific so I can make some recommendations. (As an adult, I am not allowed to use email with you. That lets everyone know that all communication is above reproach.) Are you wetting night, day, or both? Have you been examined for infections and other physical problems, or do you know that yours is emotional or habit? Did she do the diapering only once, or is she continuing to do it?