Because it is calling the boy Intelligent and determined without any facts to backup the statement. Therefore it is just what the author intreprets of the man.
At the end of the story, Romeo decided to kill himself because he felt empty and senseless without Juliet. Taking this into account, we can say that love led Romeo to lose his mind and end up his life.
Looking back, my life has not been what I always want it to be. After a heart-breaking divorce, I went on a path of self destruction. I started drinking heavily and using drugs as a way to numb the pain. Finally I had a wake up call. As I got in to some legal trouble. It opened my eyes to all the things I may have lost if I continued living my life that way. I then decided to turn my life around and go back to school. I obtained my P.H.D. and then have since found a new wife and job.