I am now convinced, after Dan-I diapered last year and then came back she became an FL of her own story. Think of it suddenly in a new class with all new characters and she is the only girl with a memorable presence and semi-unique appearance, with the only other one being a former heavenly king that has a boyfriend. Plus her back story of being isekai-ed and being heavily involved with another FL and her heavenly kings. Plus being this level of dense about peoples feelings for you seems to be a mandatory trait for FLs.