I was watching episode 48 again and watched Wu Tong's last moments. For a moment I shed a tear for him. When he tells Ling Long before pushing her away from the risk of death, away from the hole (in the void). He said: that first time he had really seen her, looking her in the eye. That he was very concerned about revenge, but now (he saw something else, I think: love.). (His words: I prefer to die with you. And at another time, he gave up, and preferred to die alone).
P.S: There is a subtext here, it is as if, somehow, there was a love story here, tortuous, but there was.). If it were another plot, who knows, Wu Tong could have found another route, and could have found redemption.