"He is disgusted..." - Mercutio
Your clues are here that he dies and he curses the Montagues and Capulets. Remember Mercutio says three times, "A curse on both your houses." He also believes Romeo is a coward and losing his honor when Romeo refuses to fight Tybalt so he fights in order to stop the dishonor.
"He hopes that the marriage..." - Friar Laurence
Friar Laurence is the only man that knows Juliet and Romeo are married or going to be. He says he marries them "to turn your household rancor to pure love." Rancor means hatred.
"He is the ruling authority..." - Prince Escalus
The Prince is the one who tells the Capulets and Montagues in the beginning that if there is any more bloodshed they will pay with their lives. He only shows up in the play after a crime has been committed.
"He is the head..." - Capulet
There are only two powerful families in the play. Montagues and Capulets. Juliet Capulet is the only person who rejects a marriage.
