Oh, the work you do at Retro is completely private. Group experience is just listening to the leaders tell their stories. then you answer questions in writing in your notebook and share it with your spouse, in private. Their is no group interaction. I never knew the stories of the people I went to Retro with, except for chit-chat over meals. There are also no professional therapists at Retro, it is just married couples who have experienced problems in their own lives explaining how they solved their problems. They show you step by step how to do it. But it is up to you to practice on your own in your room.