My therapist, and my friend, seemed puzzled that I wasn't acting like I missed her. I'm puzzled by it too. It could be that it's been so difficult dealing with her the last several weeks, that I'm relieved right now not to have to deal with the nonsense. Not sure. I really have to dig deep to understand what's going on in my head/heart.
This happened to me - there truly is a point where you are so weary emotionally/mentally that NOT dealing with it becomes more attractive than getting back your W - at least at the moment.
I love my wife more than I ever have, but her being gone right now, and not seeing her at all is great. I can love her and miss her and move on with life - it's all about letting go.
I'm not saying your marriage is done, but I believe your feelings are a positive step in the process.