When we went to Retrouvaille my H was involved in an affair. It had been revealed, and OW had broken up with H after receiving a veiled threat by my son, but H was still clinging to her emotionally. I found out later that at the time we entered the Retrouvaille building he was still writing her love letters and describing our relationship as his "marriage/divorce". That was on a friday night. By Sunday afternoon he was committed to our marriage. This would have never happened without the weekend. It wasn't anything they said, or I did, it was the whole experience. An experience that brought out the best in both of us. It doesn't work for everybody. But it has a very high success rate.