Duds, I know it's hard but you need to change your focus. You have to stop the R talks, they only serve one purpose at this point -- to let her convince herself yet again that she wants to leave. In a jury trial, there's a saying that whatever a jury hears three separate times becomes fact. That is what you are setting up here. Getting her to repeat and rethink her desire to leave just makes it that much stronger in her mind, it becomes a living truth. Stop it. Be friendly and cordial and stop all R talks. Take it day by day of you need to but back up off of her and give her some space. Things are likely to get better for both of you if you do.
