In Shakespeare's play "Romeo and Juliet," Friar Laurence is initially surprised by Romeo's sudden change of affection from Rosalind to Juliet. When Romeo confides in him about his love for Juliet, Friar Laurence expresses concern about the impulsive nature of Romeo's feelings, as he had been mourning for Rosalind just days before. However, he also recognizes the potential for a union between the Montague and Capulet families, and he hopes that their love could help end the feud between their families.
Ultimately, Friar Laurence agrees to marry Romeo and Juliet, seeing it as an opportunity to promote peace. His reaction reflects a mixture of caution regarding Romeo's impulsiveness and hopeful optimism about the power of their love. He embodies a more experienced perspective on love, understanding its complexities and potential consequences.