Saffie is right. You could learn a lot about commitment at Retrouvaille, see http://www.helpourmarriage.org. Remorse? Well, they can't teach you that. But they can definitely show you what it looks like. They don't write books. They teach by example. If you go you will benefit. One caveat, they ask you to come in with an open mind and a willing heart. If you can't do that, then there are other couples who could benefit more from a place in the room.
