Well, you don't want to announce it's over. You want to announce you won't take her back if she LEAVES.

You DO still want to save this don't you?

If so, she needs to know NOW is the time to back out of her affair. That will nag at her to know there is no return trip.

I assumed you want to save your marriage and want to give her an out.

That's how you do it, you make it clear that if she does leave, there's no coming back.

If you just announce your marriage is over, SHE will give UP TOO.. and just do what you dread the most.

Don't make her decision EASY. Announcing your marriage is over makes her decision easy.

Maybe I am not explaining this well.. frown