Well I believe the newest chapter is supposed to show that the Prince already liked the MC before they even met in school. Which leads me to believe the "love potion" had no effect because the Prince was already in love with the MC in the first place.
I would not be surprised if they reveal that the Prince knew about the potion all long and was just using it as in excuse to stay close to the MC.

Wait- someone enlighten me, I haven’t read ts in like a year. I swear the prince like got a love potion on him to fall for the mc, but like has that worn off at this point and the prince has fallen for the mc for who he really is? Or is mc taking advantage of him?
Also..90 chapters of probably straight up slop sex chapters .. booooo