heeseung is your bsf for like 6 years now, he's used in calling you 'baby' even though you guys are ony 'friends'

one day, there was a new transferee named sieun, that heeseung made friends with, he likes sieun after months and courted her, after 6 months they started dating but he still keeps calling you 'baby' heeseung: "baby, me and sieun are officially dating!" he texted