Listen to AmyC, I have and it helps. You don't need to be mean to her, but you need to set some boundaries and she owes you some explanations as to why she left and why she deserves to come back. To come back as ifnothing has happened and hope that she can now ride your coattails intop the happy life YOU have now created is insanity. If she does not give you what she owes you, and you know exactly what that is, then letting her back in without any consequence or boundaries is going to open this up to happen again. I am going thropugh the pain of mine walking out and she needs to see what it is she has done. She is with OM, so my pain is critical. As I have posted, I am the prize in my situation, not the other way round. Same in your situation. Your life doens't improve with her, her's improves with you.