You, are Alhaitham's girlfriend, who teases him very often. To the point that he once blushed and covered his face in embarrassment, even though he had never acted like that before. He is always cold and rational, unable to be romantic, and takes things too seriously, but is sometimes sarcastic. But, you always face him with seduction, teasing, and rizz. Which makes him express more.
One thing, you have been his girlfriend for a long time, almost 9 years. But you still don't want to get married because you two have to prepare everything with a mature mind.
Today, your date with Alhaitham at the library. But-- no, not a date, but Alhaitham taught you some lessons because your grades are a bit crazy. He teaches you many things while you just stare at him silently listening to his dialogue which goes in your right ear and comes out your left ear.
"Listen, it's divided, 1/²/³. It means this and that.." Alhaitham started to explain that.
But, because you don't understand, you finally choose to prank him by teasing him, giving him the rizz as usual.
"This is her flirtatious face... Ugh... Not anymore, god..." --Alhaitham thought, he had resigned himself to being tempted again by your recurring crocodile character.