Been there. Last week actually. Never will pitch to this editor again. The one upside for regular clients is you can pitch as much as you want and know they are willing to negotiate. I have a client like that now. But the one-off ones who hit you “I will not be moving forward with any of these pitches but thank you for thinking of us” is just as cutting. She tried to be polite. First piece did amazingly well. Then “wammo! Beat it! Let’s talk never!” At least that is how I heard it in my head.