The world that could we used to describe tje nurse in Romeo and Juliet is "fikcle."
The word fickle is defined as "frequently changing one's beliefs, loyalties, or interest". While the Nurse is taking care of Juliet, she acts fickle by the end of the play since she changes her position and urge Juliet to marry Paris even though she is married to Romeo.
The nurse is the personal servant, guardian (and former wet nurse) of Juliet Capulet, and has been since Juliet was born.
Amy uses imagery to show her feelings because her family is embarrassing her in front of someone she likes. She describes how they are doing it, as imagery.