"Uncle, I will also go to this school in the future." When I was 5 years old, I once said to a 17-year-old school girl.
Then he took me to his aristocratic school to play, and introduced everyone to everyone: "This is my new little pet, it's very cute!"
He doesn't know that I like him, the way a woman likes a man.
Then he lost me, and then I met him and married him.
In the days without him, I deeply forgot about him. You can't ask a 5-year-old child to remember who he is and for how long, but you must know that a 5-year-old child, even if she forgets who he is, will always remember that she loves him.