I am very sorry to hear that. I don't know what Monica's home is like, but I would ask the same thing Amy asked, could she consider adopting a second dog. If not, would she be willing to give Coco a little more time to adjust. She has two children who may be able to help keep her active and occupied, and Coco may be able to transfer her affection to them. Maybe she just needs some time to adjust, she hasn't been anywhere long enough to learn to bond with humans yet. Whatever happens I hope for the best for everyone involved. I am sure you will do whatever you can to help, whether it is just advise on how to work with her, or playdates to satsify Coco canine companionship needs, or whatever. Fingers crossed for Coco to find a happy home.