I was away most of the weekend but I read what you wrote about your first house and it really struck a cord.
My first house was 1/2 the house I have now, but it was quaint and homey, and we were happy there. I mourned for that life for a longtime after we moved here. Of course for me it was another huge move which took me from NJ to Illinois. So that in itself was hard. I never have been any good at saying goodbye, but you do what you have to do.
There have been many times since this whole thing started when I wondered, what if? What if we had never moved, and ex had never had to travel and be away from us so much? Would that have made the difference? I guess I'll never know the answer to that, but I still have all of those great memories of bringing 2 of my kids home to that house and knowing without a doubt, that for that period in our lives, we were extremely happy!
I really don't have any advice on to e-mail and set your delusional husband straight or to leave it alone. From my vantage point I'd say let it go, but when I was where you are, I don't think I could have!