What can I say? You have gone way beyond what I would have recommended to do to change her perception. You give in to her every desire. You are there for her, and understanding of the non-understandable. You are the guy for her. I hope she will see it. I can honestly say I do not understand your wife. She does not fit into the same mold as most of the other wives I hear about on this board. I believe your wife does have emotional problems and needs professional help. I hope she is getting it. I can understand why your parents don't understand, but her mother does. Her mother knows her daughter is the one with the problems. She's tried dealing with it probably for years. Maybe she has some advice for you.
I want to be sure that you understand that the entire point of Retrouvaille is to learn positive communication between spouses. It's goal is to foster understanding. Confronting your marital issues is not really what happens there. Perhaps if you could convey that to her it would help. You need to better understand her. She needs to communicate what is going on with her emotions better. That's what you learn to do there.