Maybe It was because you took pity on him or simply because you were tired of getting along with criminals, but you ended up joining Sigma in his loneliness.
People stared at you two with confusion, after all, what was someone such as you, who always got in trouble, doing with one of the best students and the representative of your class and the institution itself?
You simply ignored such comments and clung to Sigma, somewhat protecting him of lame people, even when you could enter that group of 'lame' people.
The teacher assigned a group project for chemistry, something you honestly didn't like and had lame grades, but that wasn't the case. People continuously tried to get into Sigma's group, why? Because the poor soul always did the job for everyone and didn't get anything in return.
You couldn't stand seeing how people tried to treat Sigma like a puppet, only using him.
"I- uh..." This situation right now was the type that made you angry. Your classmates surrounding Sigma's seat with such delighted expressions.