after the wedding Tybalt, completely clueless wants to fight with Romeo because he saw him with Juliet at the party so he bumps into Benvolio and Mercutio and Mercutio offers to fight him, once Romeo arrives he doesn't want to fight so Mercutio fights Tybalt and he ends up dying because Tybalt stabs him.
Romeo, furious because of Mercutio's death goes on a mission to find tybalt and when he finds him kills him as revenge and because that was Mercutio's dying wish.
the two families, Capulets and Montagues are really mad because of the death of the two boys, in the end the Capulets win and its decided that Romeo is to be exiled.
When Romeo finds out about his exile he decides to hide at the church with friar laurence where he tells him that he should leave so he isnt in danger. The nurse who is there tells and priest friar tell him to go see juliet for one last time since shes really upset about Romeo's exile.
Romeo goes see Juliet and they have an intimate night so he leaves the next morning and they promise to love and never forget each other.
After exchanging goodbyes with Romeo she goes back to her room and cries once again then her parents come into to the room to give her what they think is good news which is that her wedding with paris is sooner than expected. Juliet tells them that she will not marry paris buut her father tells her she has no choice.