Well, you see, throughout the princess's life, she was attacked by little goblins.  She could usually fight them off, but it took her days sometimes.  Well, when she took the warrior in, she went into the kitchen to try and find something that would help him.  Of course, the door was left open.  A huge goblin, one of the biggest ever, seemed to wander in.  She heard it and froze in place.  The stomps were getting closer.  By now, though, the warrior who couldn't see the goblin was regaining some balance.  He got up and swing his sword around a couple times.  After one swing, he had accidentally beheaded the beast.  There was blood all over his sword and he didn't know what happened.  The princess rushed in when the stomps stopped and saw the monster lying dead.  The warrior was inspecting it as it became visible, nobody could see the goblins before.  She ran and hugged him for his valiant act, but it was an accident.  He was just happy to have been in the right place at the right time.  As she hugged him, her weakness started to show through again.  She was so happy to be protected, she hadn't been before.  She didn't want him to keep wandering.