What purposes do the nurse's speeches serve in act 1 scene 3?

In Act 1, Scene 3 of Shakespeare's "Romeo and Juliet," the nurse's speeches serve to develop her character as a comedic and talkative figure. She also acts as a messenger between the two young lovers, Romeo and Juliet, revealing key information and facilitating their secret romance. Additionally, the nurse's speeches provide moments of light-heartedness and humor in an otherwise tragic play.