The Nurse's moral sense is extremely pragmatic. She is inclined toward doing whatever is most convenient at the time.
The nurse
Juliet is old enough to be married
She doesn't, and she doesn't have to. She is Juliet's servant.
The Nurse tells her, after Juliet asks.
In "Romeo and Juliet," Juliet's friends are the Nurse and her servants. The Nurse is a maternal figure to Juliet and helps facilitate her relationship with Romeo.
The Nurse interupts their conversation (pretty much every conversation they have when you think about it)
She wants to figure out if Juliet is even interested in marriage.
It was both Romeo's and Juliet's idea to marry eachother.
Lady Capulet is Juliets mother BUT the nurse brought Juliet up. Juliet was raised in Italy in the house of Lord and Lady Capulet, her parents. But largely by her Nurse and servant Angelica.
The nurse remembers the exact hour of Juliet's birth because she has been with Juliet since she was a baby and has a close and nurturing relationship with her. It's a detail that the nurse holds onto as a sign of her devotion and care for Juliet.
Juliet deceives the nurse about her intentions to seek Friar Lawrence's help in marrying Romeo because she knows the nurse does not fully approve of their relationship and may try to stop her. By keeping her plans secret from the nurse, Juliet is able to proceed with her own desires without interference.
They make fun of the nurse and when she says she needs to talk to Romeo mercutio wants to make fun of Romeo for it but benvoilo tries to prevent it.