She should have ended up with Song Si Yi.
You know how pple say girls are usually attracted to toxic guys. I don't really agree with it but it's actually true in this drama. Song Si Yi is there he loves her so much, he's probably even had a thing for her since childhood. He's nice, really cute and he respects her.
But who does she chose? Some cold hearted jerk who was not even nice to her at first. I don't even get why people think being cold or indifferent is attractive....like hell no.

And to me, he's really possessive. Imagine him giving her rules when it's comes to her interaction with her childhood friend after there started dating.

Song Si Yi totally stole my heart and I would say it again she should have picked him.