Ah, the mind reading thing! I think that is something which every woman in the world expects. I have been exactly the same in the past and expected my H to know how i am feeling and what i need when i haven't given him any clues whatsoever! I think it's just part of the romantic fantasy we want to live in. That we can have this perfect relationship where we are so close that we can read each others thoughts and feelings. That is a difficult one, to be honest us girls do need to realise that you are not mind readers. We should at least drop some subtle hints (because one thing we hate is to have to spell things out). You are already doing the rights things, listening (without trying to solve everything), showing empathy and validating her feelings. I would be over the moon if my H did any of that! The big problem which used to really annoy me was when H would try to come up with solutions for everything when all i wanted was to have a little rant and have someone to listen to me.
Anyway, sorry, i probably haven't been much help. I can understand now how frustrating it must be to be expected to do something which is impossible. I hope your W realises this soon too.