I have to agree with recovering2. My AW was in multiple rehabs and I had long talks with her that were very much like your letter. They are either ignored or became something that she could throw back in my face later. The purpose they did serve was for me to get my feelings out in the open. They may have meant nothing to her but they were a stepping stone for me to begin my recovery.
I remember what a hard time this was when I was where you are now and I want you to know that there is hope because I and others on this site have made huge strides in getting our lives back, to be able to regain our sanity and even find happiness again. I wish the same for you.
Your friend,