I think it's because he was still so confused with himself and his feelings for fmc. Before meeting fmc all he wants with women was nothing but sex. This time, we can all see from some chapters that deep down in his mind, he has gradually developed possessive feelings for her, the urge to caress her rather than just sex, which has never happened before. I know it was barely anything compared to what an ideal boyfriend was supposed to do, but these feelings have never ever occured to him before. We can't blame him because their relationship from the start was based on mutual sexual attraction towards each other. The fact that fmc fell in love was an unintended incident. Give him little more time to realize his feeling.
I saw it too, sayo will loose the game by saying she loves him and they end up tha relationship. Knowing she loves him kiriyima doesn't to accept his own feeling ( he is already in love with her), so he will just go to one of his sexfriend for having sex. But after that sayo who has accepted her feeling for him , doesn't change her attitude toward him even if they are now just colleagues
.the final scene of the chapter 19 shows sayo greets kiriyima with a smile and a kiriyima surprised to her reaction toward him. He smiles back to her and it's feel like he is happy that she doesn't not ignore him...i waiting for the next please sensei thinks of us
You are absolutely right. I agree. When u know he can had sex with other girl I think it's normal he had sex with other girl after parting with FL coz I think the sex is he routine & needed. We must be grateful the fact that, during he had physical relay with FL , he not cheat wth other girls. When u parting, I can relate that. furthermore, before this he never had healthy relay & his Principe it's different from normal.
Seriously after seeing the raws I became DISAPPOINTED in him. Oh boy, karma is waiting for you and will hit you hard.