Would I expect this to shock her into staying? Not really. Would I be sad to see her go? Sure, but it may be necessary. Am I realy to move on with my life? That's a tough one. It may be better than what it is now though.
EB. These are great questions to contemplate. Especially the last one. My IC kept asking me questions similiar to these. I never got to the point that I was ready to move on. However, I was working hard to get to the place where I would be comfortable moving on.
I don't think you need to have the R talk until you know you are ready to move on without her. If you do it too soon, you may regret it. You need to go into that talk ready to lose the R.