Nurse Act I scene IV Line 49 to line 56. It seems that the Nurse wants the best for Juliet.She is a servant and still has grown fond of Juliet. However, in the end of the play we see that she defends the Capulet´s family and their interests.She is defined by this attitude.She is different from Juliet and Romeo in the sense that she does not act according to what she says she feels.
Romeo Act II Scene I. Line 1220 to line 1227.He is furious and wants the dead of Tybalt because he slained his best friend.Romeo is not thinking about the consecuences of his acts.He never does .It is a characteristic that defines him.He is romantic and inmature but he acts accordingly.He is different from the Nurse in this sense.