What's the happiest thing after Valentine's day event? It's the thought of graduating from one year to proceed to another level. But to make it happen, you'd have to go through the final exams first.
Thus; everyone started to become busy. They spent less time hanging out with their friends and more time hanging out with their notes, books and pencils.
They were having dark circles around their eyes already due to lack of sleep everyday but for the sake of passing, they endured except for the naturally-born smart students.
Jacob and Hana weren't really studying that much like their classmates because whenever they have free time, they'd talk a lot of their class and about the things they learned. They would share the things that they like in school every single day and the things that they didn't understand that much.
Basically, their date was a study date.