Your W is definately the one losing out here. It seems obvious to me that she is never gonna find anyone who will love her as much as you do, why can't they see that? You are doing so well, you must be a very strong and determined person. Do you both still live together and are there any children involved? Sorry, i don't mean to interrogate you, you don't have to answer.
I just find it so sad that people can do this to one another. They really have no idea how painful it is and how, with a bit of effort on both sides, it could have all been avoided.
I'm sorry you feel that there are no signs of improvement with your R, but don't give up and one day she will see just what she nearly lost.
