The one thing I have noticed in any sitch or success story is that once the euphoria and mystery are gone from an affair, and it starts to become reality, their R changes.
They become more demanding or reclusive to the other. Responsibility starts to set in. Futures are planned. No more romance or intrigue. Things start to tick each other off etc etc.
In the meantime, keep GALing, become a better person for yourself, continue showing them that you are stable and in control of your future and that whatever happens you will survive and prosper without them and surround yourself with great friends and family.
This is what I have done, and have let my W worry about D, the house, her R, and now I have become more of an attractive option than OM.
Even DD has told me things that W tells her (pro me). She came home from school the other day with W, and DD yelled out to me in my office, "I think mummy loves you again because she says you have a good heart". W did not confirm or deny it, just stayed silent. I said "Thats nice baby, how was school". And left it at that.
So if you really want him back, just hang in there. You have many more ups and downs to go through on your ride.