For a key subset of those people, that will set up an emotional imbalance which might be akin to the feelingofguilt with the book, and maybe the author, which will encourage them to buy the book, or another from the same author, later down the line.
As well as feeling feelings ofguilt because I knew then that there were certain people now who would not speak to me again, and have never spoken to me again, and it's a shame because I lost those friendships.
This goes hand in hand with truly feeling your emotions, accepting them and allowing this acceptance to gradually transform emotions of fear, anger, envy, shame, guilt etc. into a feelingof love.