Wow NDDT that sounds really familiar to me. The process you are going through, the realization of your new life, her behavior (my W is a slob too - although she is tending to keep her new place fairly neat!).
This is important for you. This detaching, accepting, moving on, whatever you want to call it..gives confidence and gives you control frankly. You are starting to see that you certainly don't NEED her back. You will be AOK without her. And then if and when the time comes...the ball will be in your court. And that is what you want.