It has nothing to do with amazon free kindle book. All of his words are logic and don't seem to contain a personal matter between both of you on it. Way out of line and you said there wasn't any clear terms and condition, but you can say that he broke your main clause of agreement?
yeah, he did break the main clause of the agreement by delivering pump and dump material for mailing to my partner when I clearly stated that in our agreement that we would mail company profiles with no stock promotion.