wow 3, what a moment of clarity for him! That is a very nice letter from him. If it were me, I'm not sure I would say much, but that's just me. I would just say 'thank you'. You probably want to say something more, and you should if it feels right to you.
I hope you have a lovely Thanksgiving, make it about the boys. The true joy in your life.
Me:49 H:47 S: 16 T:27 M:25 My EA: 2001 His PA: 10/2007, 6/2013 Separated, but H still in house
Find your Shambala: a place of peace and happiness.