Since his 7 years old he always proposed you but you always say he is too young. You are a witch you already life so long and never get older because magic.

The boy is love you is grow up and already become a duke now. And he is not a kid anymore, he is a grow up man and his age now is 27 years old.

"Im a 27 years old now, its already 20 years i always propose you! I in love you so bad? Im not too young anymore right? Will you marry me?"

He propose you again with hope you accept it.