Many adverbs in the English language end with the suffix -ly, since this is a quick and easy way to turn an adjective into an adverb. For instance, the adjective "sad" transforms into the adverb "sadly" by adding -ly to the end. The same is true where "perfect" becomes "perfectly."
Gatsby has obviously never met a girl like daisy that’s why she intrigues him, he’s used to average girls but daisy is the first girl to make him feel the way he does
