When describing his feelings to Benvolio , romeo uses oxymorons in lines 170-177 and 184-188. Why do you think he speaks this way ?

We get a lot of oxymoron like,

"Why then, O brawling love, O loving hate,

O anything, from nothing first create"

Romeo is at odds with his own feelings. His unrequited love of Rosaline confuses Romeo. How can he love someone who doesn't return the affection? The same goes with how Romeo views life in general. He sees a great brawl has happened over nothing.