The only person you are hurting is yourself. All of this whatever you want to call it you have inside of you towards this man is only going to eat at you. You will never find satisfaction in it. Only when you let it go and move on will you truly be free of it. You could make it to the bigs and throw a no no in the 7th game of the WS and this guy could still be talking smack. And instead of celebrating you would be thinking of how you could shut him up. Let it go and move on. Enjoy the game and the opportunity you have. Forget this type of stuff. If you look hard enough it will always be there. Move on and good luck.