Respuesta :
Romeo is depressed at the beginning of the play because his love, Rosaline, doesn't love him back. ... The Montague boys decide to crash the Capulet's masquerade because Rosaline will be there and Romeo wants to win her love.
Answer:
He is sad because he wants to be with her but cant because she is from the enemy's family.
Explanation:
That's why he is sad because he can't be with the girl he truly loves and would do anything for no matter what.