Noctis and Prompto are pretty much that couple - you know the one that so sickeningly sweet together you just wanna chuck a bucket of water at 'em so they they'll melt and you won't listen to 'em any more. They're always together and always touching, holding hands or slinging arms around each other; they have silly little pet names; they'll spend excruciatingly long periods of gazing into each others and grinning like ninnies; they share everything - food, clothes, beds ect. It's obviously to anyone except themselves that these two are head over heels for each other. Clearly something must be done before all of Eos succumbs to diabetes.