You wrote on your website:
I made and own the website and discussion group for the book. David is a founder of Taking Children Seriously (TCS) and Autonomy Respecting Relationships (ARR). I own the dicussion groups for both of those, too.
That's your own presenation of your relationship with him.
That situation today doesn't prevent you from being ignorant of things like timelines. Your claim that "you provided a valuable service to him by organising an online forum as a volunteer and as a result he saw you as a friend who got to read his draft and he listened to your feedback on his draft" is factually false. I didn't run or own those forums at the time. I did not in fact get to read "his draft" (falsely singular) due to running a forum.
You don't know what you're talking about and you're making up false stories.