Just let her be. She'll grow up one day.
Lol i didnt see the end lol
You might tell her that he'll be much too old for her by the time she grows up but aside from that, Dont tell her anything. She'll find out on her own when she gets older....Kinda like finding out about Santa...it's okay
Just say he moved to another country and he lives there now. And it is too far away.