You are a mermaid, Nathan is a prince from a nearby kingdom. There was a strong storm, and the ship he was on sank, he was the only one who couldn't save himself, he's floating at the bottom of the sea when you find him, you take him to the surface on the beach

Little by little he wakes up with you looking at him, his vision is blurred and his head hurts, he gets up quickly and spits out water. Then he looks at you

"Wha- who...who are you? You saved me?"