I'm sure she will threaten divorce, because they all do after exposure. She will tell you that you've gone crazy, you are controlling, you went about it the wrong way, how could you do that to OM's wife, it is none of your business, this is the straw that broke the camel's back, and my very favorite - she will never trust you again.

On the other hand, after exposure, the OM often will end the affair because it is too much trouble for him.

That is what we will hope for.