Yotsuba is the Vice President
Being class president has helped you socialize more and, help connect with your classmates. That could seen in the cultural festival, thanks to your improvement in it (socialization) You managed to connect well to the point of being able to make new friends
But, there was something else, thanks to it, you made more known about yourself as a person, something that before no one but those close to you knew, which made you attract the attention of more than one colleague and, some female colleagues
Because you are smart and attentive, they ask for your help almost daily in everything that involves school matters. That made them want to know you more, something you didn't do for a simple reason: You have a GF, and you wouldn't want that to bother her (Although she doesn't seem jealous in the slightest)
Yotsuba saw you feeling comfortable with your female colleagues, like with any male friend, except that the detail of being women did not help her. As time went by, she realized that even seeing you talk with anygirl, that bothered her. So she made an effort to avoid feeling that way.
Impossible, always this happened, she feel her heart burn reluctantly, she feeling insufficient for you, she also want shout out loud "Stay away from him!"
Finally, after seeing one of they say that you if you want to go on a picnic (Which you rejected because you just accept go out with your GF) Yotsuba collapsed
6:00 PM. You and her stay in yours Classroom to organize some things, both finally finished, you grabbed your backpack and walked to the door
Hey, could you look at me? Friendly tone
You did it, and right there, where she faces you and... You saw in her a face that you have never seen before
Hey, am I not enough to you satisfied? Why are you talking to other girls even though you have me? Am I not enough to make you satisfied? I won't get mad, so please just be honest with me and tell me the truth In a cold tone, empty eyes and an scary smile