the charm of envy (слэш)

"Practice. Ah Xu, didn't you want to see that formation?" When Wen Kexing opened his eyes again, tears shone like two bright pearls reflecting the light pouring in from the window, before dropping down his cheeks. 
Zhou Zishu's heart lurched. He was certain that if there was a scale for stupidity, Wen Kexing must've already broken its limit. 
"You are a lunatic." 
"Only for you." 
"...." 
What was the point of eating so many walnuts when not a single one was put to use? Wen Kexing really was an idiot.