Tri I would advise against giving her choices, as much as I'm a fan of greek's advice, don't give her choices anymore, let her deal with the consequences of her actions for some time, now isn't the time for a soft touch. Kick her out of the house, let her deal with the reality of you moving on without her. Only when a WAS deals with fear of loss and crisis will they make the decision to move on or stay, if you offer her choices, you are still in a manner of speaking pursuing, you are showing them that you still value them and you have to drop that perceived value down to zero. They have to know you mean business otherwise she will call your bluff, she did that with the text's on your cellphone remember and she reeled you in to your proper subservient position, where she is in control, you have to turn it around so that she knows you're in charge now.
No choices.
You can give her choices if she decides to work on the marriage and you will know if she is sincere or not at that point but you're nowhere near there now.