Real Ending Of Little Mermaid 

The prince married another princess, and the Little Mermaid's heart was broken. But her sisters rise out of the water and bring her a knife that the Sea Witch has given them in exchange for their long, beautiful hair.

Telling her if she kills the prince and lets his blood drip on her feet, she will become a mermaid once more. All her suffering will end, and she will live out her full life in the ocean with her family.

However, the Little Mermaid cannot bring herself to kill the sleeping prince lying with his new bride, and she throws the knife and herself off the ship into the water just as dawn breaks. Her body dissolves into foam.

"The only reason why this was my favorite story."