So sorry about your news,Cass. If you can, think of Morgan running, happy and healthy, with her new friends at the Rainbow Bridge. I know how difficult it is to loose such a beloved friend.
I hope that your stupid neighbor decides to give you that lovely puppy and that the next time you post her picture she'll have a big smile in her face, instead of that sad look that breaks my heart.
Good luck and, please, let us know if you can rescue the pup.