The literary term would be an oxymoron. Oxymorons are “a figure of speech in which apparently contradictory terms appear in conjunction (e.g. faith unfaithful kept him falsely true ).”
Daisy did not take the bait, which were Gatsby's parties, so he uses Nick to get Daisy. Also, They met each other in college, Gatsby went off to war, and Daisy did not hear from him for 5 years.
