The difference between Xiang Liu and Cang Xuan showing love for JY is one let her go in order for her to be happy and the other one keeps interfering and wants to keep her forever despite her having no real place in his life
Why is he no more? I'm waiting for this to finish airing but would love some spoilers.
I don't want to spoil too much, but he stops her from getting married with FB's identity and then tells her that FB is no more, and he never had feelings for her (which is obviously a lie).