Responses
It's about giving him a false hope, like when you're putting someone in the middle 'zone' where they're neither accepted nor rejected, which is really cruel since kurose already knows he can't get anything further than this bc he knows that it might affect shirotanis mental health..
I wonder what does he mean by saying "you are really cruel shirotani-san.." after the 'open your mouth and stick your tongue' scene
but why is shirotani cruel?