What does the nurse say to Romeo in Act 2 Scene 4?

The nurse tells Romeo how little she cared for MercutioMercutioMercutio (/mərˈkjuːʃioʊ/ mər-KEW-shee-oh, Italian: Mercuzio) is a fictional character in William Shakespeare’s 1597 tragedy, Romeo and Juliet. He is a close friend to Romeo and a blood relative to Prince Escalus and Count Paris.

How long did the Nurse promise to return Romeo and Juliet?

half an hour

The clock struck nine when I did send the nurse; In half an hour she promised to return. Perchance she cannot meet him — that’s not so.