To be reaaaally fair, back at the start around chapter 9-10 or so, Sora did in fact kind of realize that Taesang liked her and honestly asked him about it, but Taesang just had to mess it up so its all his fault their relationship didn't progress since then xD
*throws empty Veltins Pils glass against the wall
Oh my Lord, COME ON. This manga has been edging me for approx ~160 days no, MANN EY!
Good to see each couple progress a tiny bit by bit lately, but ARGHHHH