Romeo and Juliet have a destined love that is not meant to be. It is a love they cannot live with or without. It turns them upside down and inside out. It is simply Shakespeare when a destined love not meant to be finds destiny.
As fate would have it, Romeo attends the masqerade and finds Juliet. As fate would have it, she is a Capulet. As fate would have it, Romeo is Montague. As fate would have it, Romeo falls in love with a young girl he cannot have.
Fate again prevails when Romeo believes that his beloved Juliet is dead. As fate would have it, Romeo does not get word that Juliet is only sleeping. As fate would have it, Juliet wakes up and finds Romeo dead. As fate would have have it, she kills herself.
As fate would have it, two deaths cause two families to reconcile. The Capulets and Montagues realize the price it has taken for them to realize how ridiculous and even dangerous their hatred has been.
As well, in Romeo and Juliet, it was fate that in Act one scene two, the servant of the Capulets meets up with Romeo and happens to invite him to the masquerade. This invitation made Romeo be able to meet up with Juliet.