Juliet is grief-stricken and devastated by the loss of her cousin, who she held in high regard. Juliet cannot bear the fact that the person who killed Tybalt is the same man she is in love with and to whom she is married. She struggles to reconcile her love for Romeo with the realization that he has committed murder.
The nurse, on the other hand, reactions is more practical and pragmatic. She is concerned about the consequences of Romeo's actions and worries about how it will affect Juliet and their families. Unlike Juliet, the nurse places a greater emphasis on the potential dangers and challenges this situation poses rather than on the emotional aspect of Tybalt's death.
This contrast between Juliet's and the nurse's reactions highlights the different ways in which individuals experience and process grief and emotional conflict. Juliet's profound emotional connection with Tybalt and Romeo leads her to feel intensely conflicted, whereas the nurse's more practical and cautious perspective allows her to think more clearly about the situation.