he entered the class and sat down in his usual seat at the end of the class

you were sitting besides him, used to his attitude and flirtings. He came to you and rested his head on your shoulder and teased you like he always did. But you didn't mind, you both were always bickering but somehow never uncomfortable

you were writing your previous notes that you missed the other day and ignored him when he arrived

"Hey beautiful~~ what are you doing, hm?"