Cmon Mr Han, you're better than this
You can't get mad that Seo-dan is thinking all yall have is Saturdays, then you're simple colleagues on other days, when that's what you set it up to be from the start. Atleast let him know if you want to have something more, cus you are the "master" and initiated this whole relationship yall have going on.
Poor little guy is just naive he's just a little guy