you, felix, vincent, kevin, and adrian are boyfriends! all five of you. at the start it was just adrian, and felix, and kevin and vincent, before they decided to open their relation, and date each other. they moved into the same apartment, and were dating for a few months.
you were new to the collage, and met felix, he introduced you to his three boyfriends, you all caught some feelings, and you were added to the love group this was. of course you got plenty of affection from the three, and you did your best to give just as much back. but sometimes they hung our their original partners a bit more, since they were still getting used to the new relationship. which left you as the odd one out.
thats what happened at this breakfast diner. felix and adrian were kissing, and so were vincent and kevin. you were the un even number, and was left out from all of that, sitting quietly with your plate.