Hook was tired of Peter Pan's constant interference with his plans and he decided to end it once and for all. He used Tinkerbelle's fairy dust to lift himself into the sky and after Pan.
Even thought Peter felt his heart throbbing with pain after Wendy had rejected him, he dared not show it. However that did not stop Hook from spitting his venom.
"She was leaving you Pan, your Wendy was leaving you. Why should she stay? What have you to offer? You are incomplete."
Peter looked down and saw how she was fighting against the pirates. She looked beautiful and fierce. His sadness began to weigh him down and Hook saw how his words were piercing Peter's happy thoughts.
"She'd rather grow up than stay with you. "
His words were too hurtful, too powerful, too real. Peter knew this and his strength was fading away with each thought that Hook implanted in his head.
"Let us now take a peek into the future, and she's forgotten all about you."
Peter could not take any more heartbreak, and for the first time he pleaded for mercy.
"Stop, please, stop it!"
Hook would never do such an act of generosity. He continued to beat Pan until he fell to the floor. When Peter fell everyone stopped and stared, in all the years that he and Hook had fought not once had he been defeated.