Most times smart people feel proud and it takes humility to see them associate with others they classify as dumb but love knows no boundaries, it humbles even the proud, and that is what happened to the prince. It is quite unfortunate he was unable to profess his love to her and so sad she died at a young age.
Guess everything happens for a reason. She came into his life to make him see reasons why he should change and then she left.. Guess she came for a purpose and when it was fulfilled, she left.. Prince was humbled by love, something he never thought would happen to him.