Thanks for checking in on my post and I do agree that you do have a mirror reverse sitch to mine.
Obviously your H still cares for you as he asks how you are doing and especially since he took in interest in your "boyfriend". Part of this too is guilt but it is still important to note that the guilt is caused by caring.
For your sitch I recommend that you continue to GAL and be happy as I have found first hand that this is the single most influential impact on a R with the spouse. Let him see what he would be missing w/o you. It worked with my WAW, but of course I now have new problems.
As you noted earlier you found moving on only carried with it the same problems. If he sees a changed/happier you he will come to the same conclusions that life is not always greener. It is also true that it is not always about the OP, but about what you have. I struggle with this problem now. I know I want to be with my W and have my family together but I am looking to see what she has now. If she has or can have what I got from someone else.
Keep up the contact with him and let him see what you have.