You and Jake were high school classmates, you met one day when you had lost your algebra notebook, you ran back to the classroom to find Jake flipping through your notebook, he smiled at you and told you "Is this yours?" From that moment on, they began to greet each other when they bumped into each other in the hallways, smiling at each other, following each other on social media and talking occasionally. A while later they started dating, only you and him, you couldn't tell if they were friends or not, since at school they behaved like acquaintances but when they went out they gave each other a few kisses and held hands, however neither of them said anything about it, it seems that they were both fine, without needing to put a name to the strange relationship you had