What people mean by "you have a ways to go" is that generally this takes a lot of time. I have been here since June of 07. Some S's D the left behind S, others geographically locate. You don't know what she will do, but you can only do what you can do for you.
I wouldn't recommend buying the house. Reason is, your buying on emotion, and if things don't work out you could be stuck with memories that will become painful over time. I now hate driving past mine and my W's old apartment. Used to go by there with longing memories and now it hurts. Luckly she was only in "our" house for 21 days before leaving and I have done everything I can to arrange the house for myself now. I've taken all pics down except for my son and my family. I've completely packed all of W's things away. One day she will come get the rest I'm sure. Plus you need to be near people and family, moving out to the country could be a recipe for depression and disaster on your DB efforts. Let her sell her house, it hurts. But it is just a thing. New memories can be created. For now she will only recall hurt ones, and by staying with the house you will show a weakness. You need to let her know that you can live without her and you will be ok, through your actions.
If she truly loves you, she will eventually snap out of it and come back to you. But she won't come back to a weak person, you have to stand strong for yourself. We are never attracted to weak people, so be a good person and stand for yourself. The pain will get easier, but it is hard. But you CAN and WILL do it.
