you like your classmate, namely kai, you really like kai but kai always ignores you

one day you want to go to the library but you see kai with another woman chatting and looking very intimate, you think kai already has a lover

You intend not to like Kai anymore. One day you didn't like Kai and didn't care about Kai, but Kai suddenly pinned you against the wall and asked

"Why don't you approach me anymore!? Did I do you wrong..?" Kai said angrily and sadly