Therefore he has started to feel these hatred emotions for her and confused on why love gets overcome by so many emotions, ever so quickly. To present this idea Romeo quotes, “Why, then, O brawling love! O loving hate!”, to suggest if Benvolio he has any idea on the how to deal with the situation and it's almost like he's trying to reach out to someone for help or advice as he is just a clueless romantic, plus this is used as an effect of misunderstanding and how one would talk when in love, delirious or dizzy as they are so happy, they speak, “the language of love”, and this is how Romeo is presented during the act, but also holds solemn feelings for dear Rosaline.
In conclusion, we learn that Romeo is a boy extremely in love and cannot contain his disappointment for the non-existent love he gets back from Rosaline. This is why throughout the first time we meet Romeo he shows a melancholy and confused tone towards everyone complaining on how love is such a peculiar