In the prologue of Romeo and Juliet, Shakespeare foreshadows the tragic ending by revealing that the story will involve "a pair of star-cross'd lovers" whose deaths ultimately lead to the reconciliation of their feuding families, the Montagues and the Capulets. This sets a tone of inevitability and tragedy from the very beginning, indicating that their love story will end in sorrow.
After the Prince breaks up the fight between the Montagues and Capulets, he issues a decree that further violence between the two families will be met with severe punishment, including death. This decree is important because it highlights the ongoing conflict and sets the stakes for the story. It establishes the environment of tension and hostility, which is central to the plot, and emphasizes the consequences of the feud that deeply affects Romeo and Juliet.
When we first meet Romeo, he is portrayed as melancholic and lovesick. He is infatuated with Rosaline, who does not return his feelings, leading him to a state of despair and emotional turmoil. His mood sets up his character as someone who is sensitive and deeply affected by love, which later contrasts with his passionate love for Juliet.
Romeo desires to attend the Capulet party primarily because he hopes to see Rosaline there. Although he is still infatuated with her, it’s also a decision influenced by Benvolio’s suggestion that Romeo go to the party to move on from his unrequited love. This sets in motion the events that lead to his first encounter with Juliet, changing the course of his life dramatically.