How does the concept of fate or predestination play a role in Act 1 Scene 2 of Romeo and Juliet?

The ideas of fate and predestination seem to mark Romeo and Juliet 's love story because they might guide their short lives to their tragic deaths. They might believe their destine is to be together just because they love each other, so they can overcome any family dispute. But the two families seem not willing to solve their issues so their children are caught in the middle. Their fate would not be happy and consequences would be paid.