Been there, done that. I've had 4 breakups in my life that were like that. Only time fixes this. You are grieving. I have been broken up with by people who never told me why. Never. Maybe they didn't want to hurt me, maybe they didn't even know. But the fact it happened four times to me tells you that eventually I met someone else. I know it doesn't seem like it will happen now, but if you can let time heal and find things to do in the meantime that are meaningful to you and have friends or family to spend time with, eventually, the hurt doesn't ever go away completely but it becomes a memory you think of sometimes while you wait for your wife to get ready. It will happen.