Based on your sitch, my WAH moved out on Feb 10,so you and I are operating on roughtly the same time line. I did all the same things that you have done at about the same time as well.
It was about 3 weeks ago that I finally got fed up and just stopped trying to "fix" this thing. I stopped calling him, and when he called me, I talked to him like he was just an old friend. And funny enough, that is about the same time that things started to go much better.
Since I have calmed down, he has felt much safer about calling and asking to spend time with me. If he brings up R talk, I just listen to what he has to say. Learning to keep my mouth shut has been the hardest lesson of all for me.
He has mentioned how much he misses me, and thinks about coming home but just needs more time to process the idea. This has been another very difficult lesson for me to learn. Men take SOOO much longer to process their emotions. What we can do in a few days might take them a few weeks.
Plus, unlike women who think about this stuff all the time, they are able to compartmentalize it somehow. They can put it in and out of their minds like turning a light switch on and off. So, while you have thought about it for months, his cumulative time spent on this subject may only be a few days. Combine that with their slow-processing time and it's like watching a glacier move.
I likened myself to a cranky baby who screamed for hours before finally tired itself out enough to fall asleep.
It sounds like you are coming to that point soon, and I feel like things will start to improve after that.