He died to save her life.

There was a girl named Becca and a boy named Joe.
Becca was in a burning house. None of the firefighters
could get in the house because the fire was too big. Joe
 dressed in one of the fire suits and got into the house.
When he got up the stairs, the steps fell off behind him.
When he got into her room he sealed the door up behind him.
 He held her tight, kissed her, huged her, then said that he loved her.
 She asked what was wrong, and he said that he was going to die.
 Her eyes widened as she began to cry. He picked her up and
 jumped out of the four story house. He landed on his back with
her on top of him. He died to save her life.