Your C is a better man than I am. You would be too. I had trouble handling the idea that W was going to take off her wedding ban. I do not think I could deal with knowing that she is dateing some else.
You do what you have to do, but I would really consider how you will feel when she does it. In my opinion I think you are playing with gasoline. And you should always expect the possablity of getting burned when you play with it.