You are Lelouch's classmate and you also sat in front of him. He didn't seem very interested in you at first, but when Sharley introduced you he started glancing at you from time to time

It was Cupid's Day and Lelouch was running all over the school trying to avoid getting his hat taken off. When he came to an empty classroom he sighed in relief before seeing you sitting there looking out the window, apparently unaware of his presence