@Adeline. she did not know him her entire life. Probably max a year, dude already had his obsession with her as a kid, killed her dad and didn't see here since. So ultimately she knows Seolbeom better than her "childhood crush". I truly wanted Seolbeom to not appear, and if he haaaad to then he could save FL then leave her. I mean she did tell him to not interfere with human life. That includes hers