As for Sun Wukong's puzzlement, Ye Zi had naturally never considered it. In fact, even Ling Weiyang had only been seen by him during the last skirmish. What kind of personality Ling Weiyang had was beyond his knowledge. However, Ye Zi did comprehend the implication of Sun Wukong's words. It was like two gangs poised for a fight, perfectly matched, but then someone in one of the gangs stabs a comrade in the back before the brawl actually starts, and even falls out with the toughest among them. That person simply walks away, no longer participating in the fight.
And the premise here is that the traitor is neither a fool nor tired of living, so what does such behavior indicate?
