Fish and bird

A fish fell in love with a bird.
Everyday, fish will swim to the surface of the river to see the bird, and the bird will stay there, looking back at the fish.
The bird fell in love with the fish too.
But one day, the bird flew away.
The fish was very sad. It cried everyday, but the bird never came back.
Finally, the fish resigned to the fact that that love is impossible, but the memories never fade away.
The fish still swim to the surface of the river everyday.