This added scene takes place after the wedding, while Xiao Yao is still in Qingshui town, and explains Jing's reason for ruining the wedding, with him acknowledging that the 15 year promise he exacted from Xiao Liu was out of selfish motivations.
Leaked script Ep 7 scene 12 (no equivalent scene in the novel)
After Xiao Yao was taken away from her wedding, Tushan Jing asked Lirong Chang about how Feng Long was doing, then requested him to spend time with Feng Long to cheer him up. When Lirong Chang asked if he was crazy, expecting him to go and become Feng Long's punching bag, Tushan Jing offered to share his business tips as repayment, and when he still did not move despite accepting the terms, Jing threatened to increase the rental of the gambling den, which proved effective.
However, shortly, Lirong Chang poked his head through the window again.
LRC: Your lover has been taken away by Fangfeng Bei, that Fangfeng Bei. Aren't you going to go to that place to look for them?
Without waiting for an answer, Lirong Chang immediately disappeared.
His fox spirit appeared in mid-air and indicated outside.
TSJ: You want me to look for her?
The fox spirit gestured agitatedly.
TSJ: You are worried that if I don't look for her, she will leave with someone else?
The fox spirit nodded, but Tushan Jing continued to look out the window without moving.
TSJ: Many years ago, because I wanted wholeheartedly to be with Xiao Liu, I took advantage of her kindness, and never gave her a chance to choose between me and Xiang Liu. However, in the end, I could not give her happiness. Now... I give the chance to choose back to her. This is what I owe her.
The fox spirit quietened down, and looked sadly at the sickly Tushan Jing.