Unfortunately, another instance occurred tonight. We care about Luna a great deal, but we also love Mr. Ex, Alia, and Jag just as much. The wife and I decided that it would be unfair to both the cats and the dog to continue having her live with us. So, we must end our foster care of her.
On the plus side, Luna is a great dog (very sweet, very loving, listens well, learns quickly). A house with no other pets or small children would be an ideal home for such a loving dog. I hope she finds a good home because she deserves it.