What happened to the grand finale of the Legend of the New White Lady (the old version)?

At the end, all four of them become immortal, but after becoming immortal, Bai Suzhen and Xu Xian's relationship has become the past and they are facing the rules of heaven. (Guan Shiyin said to Bai Suzhen, "You and Xu Xian still have three more days of love, after three days I'll come back to ferry you to immortality"). After they become immortal, they don't necessarily become strangers, let alone fall in love, just that when they are in Heaven, they must abide by the rules and regulations of Heaven, or else they will be relegated to the mortal world.

Expanded:

New White Lady ending some people think that is tragic, but can not say the reason, if others ask you, White Snake and Green Snake Fahai Xu Xian ascended to heaven together, the gold list, the cave and the candles, and through trials and tribulations are finally reunited.

Through the new white lady legend through the traditional Chinese love story, "Peony Pavilion" of Du Liniang into a ghost, Liang Zhu two people of the double butterfly. These seem to be the use of romanticism techniques, in fact, is only the authors of the reality of the compromise and helplessness, to joy to write sadness is to make the tragedy more sad.

By imperial decree, I went home to Zhenjiang to visit my family, and then to the West Lake to worship in front of the Leifeng Pagoda. The story of Bai Suzhen's visit to the Leifeng Pagoda, which is a symbol of her filial piety, has finally brought her back to the world, where she will be reunited with her mother and son, Xu Shilin.

Xu Shilin was married to his cousin Li Bilian. Bai Suzhen, Xiaoqing, Fa Hai, and Xu Xian were also reunited, and all four of them were able to ascend to the heavenly realm as immortals.

Reference; Baidu Encyclopedia - The Legend of the New White Lady