Final answer:
Romeo's instant falling in love with Juliet implies that love in the play can be impulsive and irrational.
Step-by-step explanation:
Romeo's instant falling in love with Juliet in 'Romeo and Juliet' implies that the concept of love in the play can be impulsive and irrational.
Despite Romeo's earlier characterization of being in love with Rosaline, he quickly shifts his affections towards Juliet upon seeing her.
This suggests the notion of love at first sight and the idea that love can be unpredictable and uncontrollable.