Dear Annie: I am very confused. I have a friend who is 70 and is in the hospital. She has put a mutual friend, “Dorothy,” down as her daughter. She has a son, but he is a man-child. Our friend Dorothy has so many obligations as it is. Dorothy and I are close, and we are similar ages. I do not have siblings, since my brother passed away at a young age. I have an 85-yearold father who has been…