I haven't seen the NC letter but will have to check it out. If you decide to go NC you will be strong enough to do it. It took me a year to be able to even attempt it. I think we each have to get to that point at our own pace. But I can say it is hard and feels wrong but everything else I was doing felt right but didn't bring him any closer so I figured what did I have to lose. I also think sometimes we let our fears drive us and hold us back.
My fear was losing my h and pushing him towards her. When I sat back and took some time I saw that he was already gone and nothing I did made a difference in him contacting her. So I had to let go of the fear and focus on myself and my daughters. H said it was over and I had to start living like it was and if he decided to come around bonus if not it allowed me to see I could be strong and I would be ok.
I know its hard and scary but if you choose NC it does get easier
me 32 H 34 together since 92 married 01 bomb 3/08 s 3/08