Patrick, let me ask you a question. What difference do you think it would make if you asked her that? IMO the only thing that would do is reinforce her justification for doing it. One thing you have to remember about this, they are going to do what they have in thier head to do. Trying to talk them out of it just makes them want to do it faster. If I were in your shoes, I would say nothing, do nothing, in fact, I wouldn't talk to her period! If she wants to talk to you, she will seek you out, if not, well its done and done. Either way, there is nothing you can do to stop what she wants to do.