Our timelines are almost the same (my "bomb" was July 2005). My H calls regularly and hints about wanting to come home but, unlike your H, he never comes into the house. When he does come over (such as Christmas when he dropped the kids' Christmas gifts by) he left them in the garage. I walked out to say hi and he was so nervous, he was shaking. He left in a big hurry.
When he called two nights later, I asked him why he was always in such a rush to leave. He said that I made him nervous. I asked him why and he said that whenever he is here, he looks around and sees "his" stuff and remembers his "old life" and it is too much to bear.
Snodderly's comments about this process are so interesting and insightful. Maybe one (or both) of these guys is finally starting to wake up from their long MLC nap!