I don't remember the chapter but they did say they were a thing when Jurion came to confess to Jiyoung the first time (tho it was actually her brother who said that) but now it seems to be official finally
Just found out: chapter 171 is when they fooled that guy who's into her into thnking they were dating. Chapter 172 is when she told Jiwoo she wouldn't date that guy if he had a problem with it. So either she's teasing him this chapter or they made it official off-screen.
Have I gotten amnesia cuz since when did they become an item lmao :))