Myst and Razhiel were once schoolmates. She liked him but her feelings were not reciprocated for he doesn't really commit to relationships. Another reason, Raz thinks of Myst as someone who wouldn't like him. He never tried to pursue her even though he has feelings for her, too.
They parted ways and lost communication. Not until, after almost two years, at 12:08 am, Razhiel chatted Myst.
Cupid gave them another chance to continue their story where the book was left with many pages.