Long time no post. I suspect that the suggestion I'm about to give has been mentioned on your thread before. I may have read about it on your thread. Who knows.
As you probably know I was/am in the same boat as you and GH, only I'm filing for D right now. Since I told W I was filing I learned a few things that were hiding in her head. I recommend trying this. A book by David Cunningham. It's a lot like DBing but in a more "manly" way. Just like your W, mine thought I had done nothing to try and get her back. That I was just waiting. She was waiting for "the feelings she should have for her husband" to return and they haven't (yet?). I wish I had read David's book a long time ago. It was very informative and worth every penny. You don't have to buy the book. Just read his daily messages. I did then I bought the book. You can even email him and he's very helpful. He doesn't quite grasp/agree with DBing but I think he's really just a different flavor of DBing. DBing says to try different things, quit doing what doesn't work, continue with what does work. Because what we have been doing over the past year hasn't brought back "the feelings", I am doing what David recommends. Even if it's too late for my M it will help in the next R. He helps with communication. Decoding female speak. Lots of pointers that lead to self confidence. Things that we would call GAL in the DB world. I have nothing to do with David other than I'm a customer and trying to practice what he recommends. So check it out.
If you need answers to question about the above I'll gladly try to answer them.