Expanding.......you will see the pattern over and over.....when one person starts to recover and the one isn't willing to work on themselves, also.....things go south.
As far as I can see from your writings..he was still drinking..not in a
pr ogram...and, blamed you for just about everything...and, especially for pressuring him to quit drinking....
In a relationship....it is l ike being in a dance together...like an Argentine Tango.
When one person tries to change the steps of the dance....the song is over..
My guess is that he chaffed at the thought that he would have to do some changing....so, it would be easier to blame you (again) and, move over to another enabler.......
I understand that it is painful to face all of this after putting your self and energy into the relationship for 8yrs. After you have finished the grieving process....which will go on for a while before it fades out....you will feel normal in your own skin, again....
Short-term pain for the long term gain.
dandylion