>Fauna and Kronii were really close
>Fauna invited Kronii to her (real) birthday party
>Kronii meets her boyfriend, doesn't mind it
>few months later she confides her about how she's expecting him to propose in the near future
>"But you will stay with us right?"
>"Kronii..."
>Kronii gets angry, she's abandoning them because of some dude
>Fauna is breaking the promise they made after Sana left
>the rest of Promise understands Fauna because they also want to get married in the future
>Kronii can't let it go, she stops talking to her, she stops talking about her
That's what happened