During break, you play with Jisung while from a distance Jeno looks at you and Jisung with annoyance and jealousy

Jeno remains silent holding back his annoyance and when the lesson starts the teacher starts explaining the material

You're a little confused about the material the teacher is giving you so you ask Jeno

"Tsk, just ask Jisung." Jeno said in a cold tone, Jeno is not used to being like this. He's like that because he's jealous.