I have only read a few of your posts here, but I am glad to see you are feeling better.
My H and I are in piecing now and I have come to terms that if I really want this to work, I have let go of the past completely. I know it's hard and I do it one day at a time.
My H still believes it's my fault. But if that is how he wants to justify his behavior, then so be it. But deep down in my heart, I know it was not completely my fault.
Keep the lines of communication open between the two of you. Always use "I" statements. That helps.