Please don't feel bad, Moosmom. In no way did you fail with Coco. Just like people, sometimes kitties simply can't adapt to a particular situation. From your post, Charles sounds like the real deal. It was sad reading about his RB Osiris. I'm sure Charles will find a way to get Coco safely to NYC. He seems to know about health issues and proper cat care. Could he be in love already?
Please let us know how this all works out! You did good work for Coco!