Well, I feel sorry for her AND you. The poor little thing will grieve for mommy. She's used to a routine that will totally change. Her whole world will literally be turned upside down. I'd sit down with the two of them and try to explain this and ask them if you could get them another doggie so she won't be put through this unnecessarily. She probably won't get the attention or walks and the other things that she has been used to having from you and she won't understand why. She'll probably basically feel like she's been thrown away.