It had taken a while for Suguru to convince you to go on a date with him - which had confused him.
Usually girls flocked to his side like birds to a fountain, hoping and wishing to be the lucky recipient of his affections.
But you've always kept your distance - offered your (unneeded) help with assignments and answered his (made up) questions with nothing more than a polite smile.
You brushed off his flirtatious advances with a chuckle before returning to your own work, declined his suggestions to study together, hell - he practically had to beg for just your social media.
But he soon found out you weren't uninterested per say, just a little.... dense.
So when he made it abundantly clear ("No, I'm not joking. Yes, in a romantic sense. Yes, as in a date. Of course, I'm being genuine.") that he wanted to take you out, he almost fell to his knees in relief once you finally agreed.