My award winning 200 pages sits in a kinko's box at the bottom of a file drawer under my phone books, has been for two years. Am now writing something completely different and am happy with it. I certainly hope I'll have another one someday and want to know what to expect. Your thoughts would be greatly appreciated. I believe you had a series of unfortunate miscommunications and that, if I were to hear your whole story and the agent's whole story, I would be sympathetic to both.
Different agents operate differently, just as do different authors.
What's comfortable for one person or two people together does not work for others. Rarely is the ideal met, and any number of alternatives may then ensue. Had you sent your promising work to me, I would have asked you to finish it and send it to me when it was finished or when it was as good as you can get it. If I felt it needed just a little work, I would have told you what I felt it needed and asked you if you agreed and felt you could do it and wanted to. If we saw eye to eye, you would then proceed and send it to me again.