I think the character who changed most in the play was Romeo. In summary, at the start of the book he is innocent young man looking for love, but by the end he is a murderer. Love and death change him.
In the
start of the play he is depressed because he loves Rosaline but she doesn’t
love her back. His father says he is seen crying under the same tree every
morning. Romeo constantly complains to his friends saying how horrible and heart
breaking love is. Evidence of this is in Act 1 scene I line 174: “O brawling
love! O loving hate!”
But this all changes when he meets Juliet, he is joyful and definitely not depressed! He seems so happy that everyone who knows him is surprised of this and thinks Rosaline must finally love him back. We know this because Friar Laurence Says: "Holy Saint Francis, what a change is here! Is Rosaline, whom thou didst love so dear, So soon forsaken?" (2.iii.65-67)
But this all changes when he meets Juliet, he is joyful and definitely not depressed! He seems so happy that everyone who knows him is surprised of this and thinks Rosaline must finally love him back. We know this because Friar Laurence Says: "Holy Saint Francis, what a change is here! Is Rosaline, whom thou didst love so dear, So soon forsaken?" (2.iii.65-67)
Of course
he is not happy because of Rosaline, he is happy because he has found a girl
who he loves more than he has ever loved, and he feels this time it is
different, that there is a connection between them, as if she loves him back.
(Which she does of course!) This shows Juliet has really improved his life (for
now) and made him happy again, but, he is obviously not happy for ever after
because he kills himself in the end.
After meting Juliet, he isn't just happier, but he becomes more drastic with his choices and opinions because he kills Tybalt and then Paris and finally himself. Maybe he has stopped making rational choices because his mind is clouded with thoughts of Juliet.
Killing Tyblat changes him more because he has committed what is seen as an unforgivable crime and he now has to be severely punished. He doesn't get the death penalty but is banished from Verona, and so is feeling sad because he cannot see Juliet. It also complicates things with Juliet because her husband has just killed her cousin and so she's angry at Romeo but also dreading the prospect of not being able to see him. We now view Romeo as a killer who could do bad things again, we no longer feel sorry for the innocent, depressed Montague boy.
This is how Love and Death have changed who Romeo is, and what he can do.
After meting Juliet, he isn't just happier, but he becomes more drastic with his choices and opinions because he kills Tybalt and then Paris and finally himself. Maybe he has stopped making rational choices because his mind is clouded with thoughts of Juliet.
Killing Tyblat changes him more because he has committed what is seen as an unforgivable crime and he now has to be severely punished. He doesn't get the death penalty but is banished from Verona, and so is feeling sad because he cannot see Juliet. It also complicates things with Juliet because her husband has just killed her cousin and so she's angry at Romeo but also dreading the prospect of not being able to see him. We now view Romeo as a killer who could do bad things again, we no longer feel sorry for the innocent, depressed Montague boy.
This is how Love and Death have changed who Romeo is, and what he can do.