C-Bart,

My advice is to go and do Retrouvaille with an open mind and a willing heart. And remind your wife that that is what she agreed to do too. It is 2 days. It might not change your life, but if you don't go, it definitely will not help you in any way. As VH says, there's a lot to learn about yourself, about your wife, about love relationships by going to the weekend. You don't know what will happen there, and neither does she. It is an experience, a worthwhile experience.