I've been looking on amazon at books for addiction recovery / treatment.

Through books discussing the aetiology of addictions, it seems that there is a theme of something being wrong in the area of attachment for the addicted person.

take this book forinstance, 'Creating the Capacity for Attachment: Treating Addictions and the Alienated Self'
by Karen Walant

The book synopis includes this...
"Detached, alienated people, many of them functioning with a pathologically developed false self, barely navigate life's challenges. Our cultural emphasis on autonomy and separateness has led to a retreat from valuing interpersonal, communal dependence and has greatly contributed to a rise in the number of people whose suffering is often expressed in addictions..."

I am buying some of these books.