Might be because I haven't read the novel yet, but I'm struggling to understand why Ji youuan wouldn't just send a vid of her singing straight to Jing xiu? Idk seems more self centered to post it on social media.
Part of it might be that their separation was in a large part cause by Youyan putting their relationship in the shadow, focusing on appearances for the sake of her own career. I think being direct and public is also her way to say that she will not act as if she's ashamed or try to hide it.
Her goal is not just to say she loves Jing Xiu, which they both know. It's also to say she will respect and nurture their relationship.
I was about to say this. She needs to be public this time and that willingness probably helps Jing Xiu understand how much she's changed. Before, while they dated, she allowed herself to be publicly connected to male actors and that hurt Jing Xiu, among other things. She treated their relationship like something to be hidden.
Yeah, this is the answer. Yanyan needs to show Jing Xiu that she isn’t afraid to attach herself to her in the public eye. Even if it’s just wishing Jing Xiu a happy birthday. In the past, Youyan wouldn’t allow any degree of public acknowledgment of their friendship, much less relationship, so her now being the one to be open is important to showing Xiu that’s she changed.
Also, in case it wasn’t clear from the flashback, Yanyan is singing in French in the video.