This made jack zero sense. Ham Dan-I went to the fast food, burger store on a whim. No one knew or could have reasonably known she would be going there. She barely even knew she was going there.
So both this girl and the photographer somehow stalked the shit out of Ham Dan-I so hard that they could predict she would get a burger? What the hell?
Also, I think it would be much more interesting if Baek were just a puppet and sincerely did want to apologize. She was controlled by the author into being the bad guy, and now she doesn't even know why she did it back then. That would be more interesting.