Su Xiang is Song Yue's love assistant.
Su Xiang didn't know whether Li Siting and Fang Wenlin became her good friends because of Song Yue's relationship with him, or whether it was because she was a good friend of them and Song Yue became her good friend. This is a chicken-and-egg problem that can never be answered clearly.
What Su wanted to know clearly was that she played an indispensable assistant role in the relationship between Song Yue and Li Siting; she was also an indispensable mediator in the relationship between Song Yue and Fang Wenlin. It seems that without Su Xiang, Song Yue would not be in love.
Song Yue had never asked Su Xiang: Why are you so nice to me?
Su Xiang often thinks, if he asks, I will say: Because I love you more than anyone else.
However, Song Yue never asked, and Su Xiang never said anything.
Therefore, Su Xiang served as Song Yue's personal love assistant, accompanying him in one love relationship after another, watching his romantic relationship with a very different girl, and handling the aftermath for him. Finally, at the wedding, Su Xiang chose to escape.
I have only heard of a runaway bride, but has anyone seen a runaway bridesmaid?
Su didn't even know why she didn't say anything about her love for him when she had the chance, and why she started to feel melancholy when the situation was decided.
More than just melancholy?
If the secret love for him for 20 years is fruitless, would it be too cruel to sum it up with two words: melancholy?
Just as Song Yue dragged her into his happy and sweet love again and again, forcing her to face his happiness that had nothing to do with her again and again, it was just as cruel.