I will give you a pass on breaking down and calling Mr. NCU because we have all been there and done that. I understand how it is to feel emotional and have to let it out. I also understand that the "I can't live without you", "Who else will love me?", hand wringing talk does no good. So refrain from this at all costs going forward. You can do it!
What you need to project is strength and confidence. Dig deep down until you find it. How will you get your groove back? I think some suggestions have been made throughout your thread. I understand that it hurts terribly to be rejected by your H. How will you NCU convince yourself that you are desirable? If you don't think that you are, what do you have to do to feel desirable?
The thing is, we all have some physical thing that we can do better at. That is true for WAS and LBS. Don't let Mr. NCU do a hatchet job on your self confidence. Simply decide that you will not allow it. If you honestly believe that you have let some parts of your appearance "go", then address what needs to be addressed.
In your shoes, I would stop the R talk with Mr. NCU. The next time I saw him I would make sure that I looked him in the eye and looked better than ever. This is the time to bring your "A" game and your game face. Project a quiet confidence and a sexy attitude. You can do it! Can't you?