I believe that this sentence means that Gatsby created this perfect image of Daisy which doesn't resemble reality anymore. He loved her for so many years that each time he thought about her, he added something new, more, better to his image of her, until she became perfection in his mind.
Answer: Verbal and Situational irony
Explanation:
Once upon a time, there was one happy family, mother, father, brother, and sister. Sister and brother were very different and everything that was bad to sister was good to brother. He liked to be different.
In April, it was the time for the mother's birthday and everyone wanted to celebrate the birthday outside but the problem was the weather. Everyone was talking about the rain and brother and sister did not believe in that so they throw a party outside. The second when the mother showed up, it started to rain and the sister was very unhappy because of that. When the brother saw the rain he said ''Oh, what beautiful weather. I am amazed!''.
The most interesting thing was because they have mixed up the dates and the mother's birthday was not on that day. Then the brother said ''Good, that means that it is meant to spend the mother's birthday outside.''