So from what I understood that some old granny on road to her home told her that she feels sorry for her as she is now always with Haesu Lee or that they are becoming one being, and that's he's already with her always or so it seems. She found her dad in her home and he was asking her if everything at school is fine and and she thought that she would tell him she had some flashback but then sensed Haesu Lee around telling her like are you really going to tell him everything so she lied and said everything was fine and when her father was leaving he said she's just like her mother and she failed to cook even the Ramen
And then she sensed Haesu Lee again and they had a conversation and he told her that she would get a call and she is not to answer it then she had a call from the glass guy and he said that he had some food for her and that he would like to see her face-to-face but then she remembered what Haesu Lee told her and she feared his life so she told him that she wants him to forget everything about him and her and to leave her alone and then she closed the car and I think blocked his number or something

Found a Website that his this up to chapter 30! However only in arabic tho
https://azoramoon.com/series/classmates/chapter-30