Why did Bajie say, "Brother Monkey, it's him again,"

Because he (Nine-Headed Insect) was the one who cuckolded Little White Dragon back then, Little White Dragon was so angry that he set fire to the pearl that was rewarded by the Jade Emperor. He was accused of rebellion by the Dragon King of the West Sea and sentenced to death by the Jade Emperor. , If Guanyin Bodhisattva hadn't saved Little White Dragon and asked Little White Dragon to protect Monk Tang from studying in the West, Little White Dragon would have died long ago. All the things were caused by "him". He had done it once before (cuckolding Xiao Bailong and almost indirectly killing Xiao Bailong). This time he stole the Buddha again, so when Bajie learned about it, Said to Sun Wukong, "Brother Monkey, it's him again,"