I haven't posted to you in a few days although I have been reading along, If you go back to when you first started posting here on the MLC board, and look at what has happened with your ExH you will see that what you mistook for acceptance was really him peeking out of the tunnel to see where you were. He seems to be at a later stage of replay right now. It is interesting that he broke up with OW#2 but then two weeks later started dating her again.
At some point this cycle will need to break.
Just my observations for the moment and reflecting on what you wrote.