For those looking for some clarification for the cutscene: Pigsy (Bajie), in his pursuit of Moon Goddess, accidentally bumped into Zi'er (the elder spider lady). Zi'er fell deeply in love with Pigsy at first sight. Later, Pigsy was banished to the mortal realm after exposing the illicit affair between Moon Goddess and the Jade Emperor. Zi'er willingly gave up her immortality to follow Pigsy. Through nine reincarnations, Pigsy wandered, and Zi'er waited. Pigsy transformed from a demon to a Buddha, while Zi’er descended from a deity to a demon. Their destinies, once intertwined, drifted further apart. After completing the fifth chapter, we discover that Pigsy didn't deny their past but feared acknowledging it. Due to the Heavenly Court's persecution, Pigsy worried that being with him would endanger Zi'er, so he resolutely chose to embark on the Journey to the West. Pigsy, mistakenly reincarnated as a pig, frightened another young lady at the beginning of the story. Yet, despite his pig-like appearance, Zi'er instantly recognized Pigsy's original handsome features in the hot spring. As their hands clasped, Pigsy's initial reaction was self-loathing. He transformed back into a pig, saying, "I'm no longer the mighty Marshal of the Heavenly River; I'm just a lowly pig demon." Zi'er, upon hearing this, instantly transformed into a spider, saying, "I don't care! I'm no longer a graceful celestial maiden, but just an ugly spider." True love is accepting the other unconditionally, even at their most destitute. After confessing their deepest insecurities, they embraced each other without hesitation. In the final lines of the song, the man sings, "I hope you won't look back" (hoping she hadn't fallen for him initially and could remain a happy celestial maiden), while the woman sings, "Please do look back" (no matter what, I will wait for you).
Many people say they can't understand Bajie and Spider Spirit: Specifically, Bajie admires the Taiyin Star Lord (not Chang'e), and the maid she meets on the way is Chang'e (Chang'e is an official position, and all the maids of the Taiyin Star Lord are called Chang'e). The Jade Emperor and the Star Lord of Taiyin were caught in a private meeting by Tianpeng and exiled to the mortal world. Chang'e, who couldn't forget Tianpeng, descended to the mortal world and became a spider spirit. And Bajie, who was demoted to the mortal world, saw Gao Cuilan in Gao Laozhuang and thought it was Chang'e chasing after her. However, Gao Cuilan was scared when she saw Bajie's true body. She traveled west to Pansi Cave and the reincarnated Purple Spider recognized the pig head she was longing for at a glance. They fell in love, and Bajie also released Purple Spider during this tribulation. Purple Spider had Bajie's daughter and waited for Bajie until she grew old. Also, because of the mistake of identifying the wrong person, Purple Spider said before her death that you were still as stupid as before (pointing out the wrong person), and also pointed out that the old pig didn't dare to admit that they were afraid of being punished by the Heavenly Court. Even Monkey Brother, who is stronger than himself, was killed by the Heavenly Court. The Bull Demon King, a powerful warlord who only had a slight connection with the mandate of heaven, caused his family to break down and his wife and children to be separated. How can a small silk hole withstand the Heavenly Court? Bajie lacks the skills of his senior brother and is not as powerful as the Bull Demon King. Without turning back, I cannot love you. Turning back would harm you, so Bajie does not recognize her. Bajie has insisted on helping the destined person. Even if he fails, he only needs to sacrifice his own life and will not involve his lover anymore. Holding this breath of love that can give you is letting go.