Kammala wannan jumla: A lokacin yakin, Gatsby ya kai matsayin Major a cikin Amurka 16th Infantry Regiment, kuma an yi masa ado don ƙarfin hali don sa hannu a cikin
Marne da kuma Argonne. Bayan yaƙin (kamar yadda ya kuma gaya wa Nick Carraway shekaru daga baya), ya ɗan zauna a Burtaniya, inda ya halarci Kwalejin Trinity, Oxford. Duk da haka, ya ƙi da ake kira "Oxford mutum". Ya bayyana wa Tom Buchanan, "Na zauna na tsawon watanni biyar ne kawai". "Wannan shi ne dalilin da ya sa ba zan iya kiran kaina mutumin Oxford ba". Yayin da yake can, ya sami wasiƙa daga Daisy, yana gaya masa cewa ta auri mai arziki Tom Buchanan. Gatsby ya yanke shawarar sadaukar da rayuwarsa don zama mutum mai irin wadata da girma wanda ya yi imani zai sami ƙaunar Daisy.