JJ, when i first got the translation to F.O.L and K&C, it just confirmed what i'd been thinking about her marriage/divorce.
i've watched how her life has progressed, personal and professional and you can see the effect it has on her. mentality, emotionally, and physically, you can read it in her lyrics. songs like wait& see, hikari and colors give you an open door into her relationship with Kaz.
an even though Dareka no Negai ga Kanau Koro was written for Casshern, it feels like she's predicting her own divorce.