sum up the prologue in act two and explain why it's necessary to the play or why it isn't necessary to the play.
Yes, the prologue to the second act is necessary, as it serves to reinforce themes we've already been made aware of. These themes deal with how Romeo has replaced his first obsession with another (Juliet), and also the theme of parental influence or demands (family obligation). The prologue of the second act is a suspense builder; it reiterates the lovers' main problems and gives hope that they might be overcome.
Romeo and Juliet
