I can appreciate your worry. It seems unusual for 'homesickness' to kick in 2 years after a move and in quite a young child who is with her immediate family. But maybe she is just being a bit grumpy ..kids go through phases.. and just does not want to Facetime.
I know sometimes DGCs would prefer to be at home than with me for chidcare especially now they are older. Once my DGS1 shouted crossly ' I bet Nana will take me to the theatre or a museum!" ??? Sometimes grandparents just aren't top of a child's list of exciting things to do! I don't take it personally....
p.s. my DGS1 always ends up having a goodtime!
Outrageously overpriced baby food
60p for visits to the toilet !
UK advised to stockpile food as Russian Attack fears grow


