Yuan Zuan sat on the chair beside Mo Kio and seductively leaned to whisper in his ears, "I know what must have happened. Chen is a little bi*ch who has used you and then discarded you. Like she did to me."
Mo Kio thought, "Uhh gross." He was so angry that he wanted to slap Yuan Zuan across the face. Instead, he shifted away from her and asked, "Leave me alone."
Yuan Zuan smiled and stood up, "Sure I will. But if you need a real friend, come to my house after school. I might even be able to provide you with something Chen couldn't." She winked and left.
There was someone who had seen the entire scene play out. Si Xia had been observing Mo Kio since the morning. There seemed to be something odd about him. He hadn't gotten a chance to talk to him during classes, and had planned to do so during the lunch. But Mo Kio did not sit at their table, and when he saw Mo Kio talking with Yuan Zuan, Si Xia was sure that Mo Kio had or would hurt Yu Chen.
Though he had not shown interest in Zuan, but Si Xia did not want to take any chances.
So after school he stopped Mo Kio as he was getting on his bike.
Si Xia: "Hey Kio, I wondered if you could help me with the assignment?"
Mo Kio: "Not today, I am busy."
Si Xia: "Yeah I know, with the competition. But I really need to understand this one before I leave for the tour. I can come with you on your bike to your home."
Mo Kio: "Sorry. But right now, I'm not going home."
Si Xia: "Why? And why are you in school today?"
Mo Kio did not answer as he got on his bike. But before he could start it, Si Xia had punched his face. Mo Kio wanted to explain, but Si Xia was in no mood to listen. He threw another pinch across his face and shouted, "Don't think that you can get away with anything. Yu Chen is mine and I will not let anyone hurt her."
Mo Kio knew that talking would have no effect, so he started to try to protect himself while also explaining. But Si Xia did not seem to listen to a word which made him angry, and soon it turned into a real fist fight. The boys only stopped when they were pulled apart by the guard who could barely hold them and threatened to tell the principal if they both did not go to their homes right now.
By now, both of them were in a really had shape. Mo Kio's face, hands and body was covered in bruises.
Si Xia, on the other hand, was limping with blood coming out of the corner of his mouth. His hands were not any better than Mo Kio.
As he mount his bike to leave, Mo Kio said, "Go ask her yourself. Go ask Chen. Who is hurting her and who is protecting her?" Then he turned and sped on his bike.
Si Xia stood there for some time before he began half walking, half limping towards Yu Chen's apartment.