act 2: after the nurse sees Romeo, what do her actions towards Juliet show?

Back in the Capulet orchard, Juliet eagerly awaits news from the Nurse. When the Nurse eventually arrives, she comically refuses to give Juliet any information about Romeo until she has received a back rub. This shows the playfully close connection that the Nurse has with Juliet. It juxtaposes the cold relationship that Juliet has with her own mother.