Idk LW, its been a while now and it seems to me that no contact isnt getting you any closer to your goal, perhaps its time to try something new. I think you sh try reopening the lines of communication ever so SLIGHTLY. So, along those lines, Id initiate contact about the letter. On another note, Id also be sending her updates and pics of sons games etc. to keep her updated on the basics of his life, just out of love you have for each of them and I also happen to think its good coparenting in general. I know everyones gonna jump here and disagree, thats ok. This is my opinion nonetheless and i realize its different than the common view here on the boards, just thought id share with you what I though as I read your last post.
M: 43, H: 44 Married 18 yrs, Together 26 yrs S17, D15, D8, S6 Still living in MH