@bens she's trying to confirm that Seojin is crushing on her future husband. It's so obvious that Seojin likes him that even she noticed it. She knows that Seojin has liked him for longer than she has been with her future husband and is probably trying to help him out bc Seojin is being kinda a pssy rn. If anything, she's a saint for going out of her way to help their relationship and lose her engagement to a guy who doesn't even seemed that into her.
Reading and writing smu t with a straight face😎