Having read the whole thing in great detail, I’m going to try to give you an honest perspective. Your competitor has done nothing to you. Someone loosely connected to your competitor (used to work there) did something extremely mild to you, and you have been overreacting to it so egregiously that it splashed over into your relationship with another company, through no fault of theirs. It is now to the point that you have made a complete ass of yourself. If you had simply let it drop like an adult, Nick never would have dropped that incredibly damning (to you) email chain. You blew it.