I am so sorry you are going through this heartache and that you and your BF are suffering so much. You obviously care deeply for him. While you are right that having OCD is not his fault and not in his control, how he chooses to deal with it IS in his control. By going along with his unreasonable requests, you are actually enabling his OCD. I know this because my son suffered from severe OCD.......he is about your age now. He finally received the right treatment.....Exposure Response Prevention Therapy - the same therapy that is discussed in My Life in Rewind (the book that was recommended to you). That therapy literally saved his life and he is doing really well now - with no meds. If you'd like info as to how to find a competent therapist I have a blog on wordpress called ocdtalk where I talk about Dan's story and recovery. If your BF won't go to a therapist, there are even self-help books you could get (library, bookstore) that may help you help him. But continuing on as is is going to take more of a toll on you and also fuel your BF's OCD. Good Luck. You are in my thoughts.