No, she is and you are...She wants out, has told you she wants out and all you keep saying is be honest with you.
What you need to say is that regardless of the fact that you gave her permission to cheat on you (I am not even going to touch that one) so long ago, enough is enough. You are married and from this day forward it shall be the two of you and if she doesn't like it she knows where the door is.
Don't beg, don't be ugly, just state the fact that you are no longer willing to share your W with any other man.
(((Hugs)))
May All Who Seek To Take My Life Be Put To Shame And Confusion; May All Who Desire My Ruin Be Turned Back In Disgrace. ~Psalm 40:14~
