Did Han Fei and Fisher divorce successfully?

No, according to the story of "Regret of Not Falling in Love Late at Night", Han Fei and Fisher wanted to divorce because of their incompatible personalities. Because Han Fei loved Fisher more and was afraid of Fisher's loneliness, they didn't succeed in the end. Sorry, I don't talk about love at night. The ending of the novel is that Si and He didn't come together in the end, and their love story ended in failure.