I too have found myself in this situation over the past week or two. i have started questioning if any of it is worth it at all. I guess that is something we each have to answer on our own.
if the pain and frustration is too much, then maybe we need to move on, if we can see down the road how this bittersweet agony will help create and repair a most wonderful relationship then we need to stay steadfast in our resolve.
For me it is hard to see that future possibility so I struggle just like you. Yet I can't imagine a future without W so it is a total paradiem I am faced with.