This really is the question, isn't it? Is she available to other men? You are going to have to discuss it. I would recommend dialoguing on it, to get full answers, not just conversation. What drives spouses apart is living a married-singles lifestyle. What holds a marriage together is doing things together, and working together toward goals. For a while there I was sort of believing that although you were separating, you were doing it together, and therefore, somehow, maybe, it wouldn't push you further apart. But if the separation is to have a singles lifestyle, then there really isn't much question as to where it will lead. A good first question is, "How do I feel about wearing my wedding ring?" When that has been fully explored you will probably have other deeper questions that need to be explored.