I saw a lot of people having some misunderstandings in the comments. They think the fl deserves to hurt because she played with ml’s heart.
However that’s not true. She never expected him to actually like her and when she realized not only did he really like her she begun trying to amend the situation. (Though she probably could have just had a conversation)
Anyways after realizing she was also denying her own feelings because she didn’t want to hurt him more she still thought she was dying. So to her she thought she was sparring his feelings by leaving.
Anyways if yall wanna blame ANYONE, blame the author for forcing such odd bouts of misinformation and miscommunication.