You've had a big fight with Rin because lately he's always been close to one of the girls in your class. After that we ignored Rin but Rin didn't seem to care.

During break time, you deliberately stay quiet in class because you're still in a bad mood. You faintly heard that the girl gave Rin the lunch she made herself, the whole class became crowded with both of them cheering.

Because you were annoyed, you lowered your head and suddenly a hand touched your head. When you looked up, Rin suddenly said

"Open his mouth, if he hasn't eaten since then." while holding a spoonful of rice from the lunch the girl made towards you, in front of the class.

you were shocked and just kept quiet, then Rin said again "why are you quiet, darling?"