I hope that you and your wife will practice the dialoguing while you wait to do the Post sessions. It's important to keep the communication going. Not just talking. There is something different about the dialoguing that makes you feel close to each other, that talking just doesn't match. The Post sessions are very important.
When Retrouvaille was started many years ago, it was just the weekend. And lots of people were able to save their marriages with just the weekend. But then it was decided that more help was needed, and they developed the Post sessions. This really boosted the percentage of couples who were still together after 5 years. Now 80% of couples who do the entire program are still married 5 years later.