Looks like the childhood friend is added in these few episodes in part 2 to make lu xun jealous and then once they start living together in episode 30 he finally leaves
**NOVEL'S random spoiler ahead**I was searching for the part 2 of the novel & it just confused me a lot. Li Siqi,…
In the novel it’s quite different to the drama cause lu xun dies at the age of 60 and zhu yun is left alone to look after the three kids as a single mother then her mum dies before that that’s when she forgives lu xun before passing away after seeing her grandson documentary of playing his father life story
https://twitter.com/kaz22532418/status/1594789309479280640?s=46&t=yhpQmgbeQlBTybcvmq6b6A