At least she'd got you, and from what you say you'll be a better mother to her than her actual mother. It's not a big change for her - living with grandmother is familiar to her.

Okay, she might have one or two abandonment issues - I can say that with confidence thanks to my experience with being evacuated in 1939-40 - but because she's with you and Rodney she'll probably end up really happy and not really missing her mother.