Romeo is an ironic character in the play Romeo and Juliet, he changes quickly and he doesn't stay on his word often, not a straight thinker. He stopped loving Rosaline when he first saw Juliet, although he was emotionally affected with Rosaline.

Romeo forgets about Rosaline after seeing Juliet in the party. Romeo passions change when he says "what lady's that which doth enrich the hand of yonder knight"" when he saw Juliet. Romeo forgets his first love, Rosaline after coming to the party and seeing Juliet. Romeo changed quickly from loving Rosaline to loving Juliet.

It is ironic when Romeo said to Tybalt about peace and to forget about anger and ends up killing him. Romeo excuses Tybalt by saying "Doth much excuse the appertaining rage to such a greeting." Romeo killed Tybalt after saying to him about peace and not to fight, he said this because...