Take a look at my post and in one of the threads from a few days ago is a quote. This will give you some good insight into what is about to happen. Regardless, your W is going to be in a state of transition and will probably be a little scared about the change, mine was anyway. Your job is to be cool and be the man you were when you fist met. Keep any serious dicussions to a minimum and in the right situation (when you feel comfortable), just talk to her. Shut up and let her talk about herself. Try to figure out a good excuse to let this happen...if you figure out one let me know.
Let her know you understand why she is doing what she is doing (directly or indirectly, your call). Do not say any harsh words, ever, and start working on making yourslef into a gift that any woman would love to have.