I told the stars about you

Priscilla is a 19 year old commoner in the kingdom of the powerful king Elijah, who falls in love with Priscilla the moment he sets his eyes on her. Both madly in love, like any couple, marry each other. They happily live their life, satisfied with everything, until Priscilla has a mishap, leaving Elijah and the kingdom forever. What was it? Was it an accident? Will Elijah ever get his love back?