I think Nocode is obsessing (with due right) about his sons and their emotional well being. We all have obsessed about the A from time to time (I am waving here!!), and it can still pop up and hurt us especially when we are being told its not happening when clearly it still is.
I think nocode has shifted his focus to the boys, and not wanting them exposed to anything negative, not wanting to be 'replaced' as a father, not wanting them used as pawns, not wanting poison spewed into those innocent ears. I believe the PI is basically for his sons' sake, not to save his M.
