In the play Romeo and Juliet, Rosaline is a character who never appears on stage. However, her absence has a profound impact on the plot and Romeo's state of mind. Romeo is first introduced as a lovesick young man who is pining for Rosaline. Despite his declarations of love, Rosaline has chosen to remain chaste and not return Romeo's affections.
Shakespeare uses several quotes to show the audience that Rosaline is not interested in Romeo. In Act 1, Scene 1, Romeo says to his cousin Benvolio, "Out of her favour, where I am in love." In this line, Romeo expresses his love for Rosaline but also acknowledges that she does not love him back. Benvolio then advises Romeo to forget about Rosaline and seek out other women.
Later in the same scene, Romeo explains to Benvolio why Rosaline has rejected him. He says, "She'll not be hit with Cupid's arrow. She hath Dian's wit, / And, in strong proof of chastity well-armed, / From love's weak childish bow she lives uncharmed." In this passage, Romeo describes Rosaline as a woman who is chaste and does not believe in love. He also implies that Rosaline is more interested in maintaining her own independence than being in a romantic relationship.
Overall, Rosaline's rejection of Romeo highlights the theme of unrequited love and sets the stage for Romeo's eventual meeting with Juliet. It also emphasizes the fickle nature of love and the fact that love can be painful, as it is for Romeo.