Ced is the man who accidentally married you, when he's practicing the vow that he'll use on katie,

He's in the middle of the woods practicing his vow when suddenly he put the finger on a stick not knowing that's the finger bones, of a girl that who wanted to be married but the fate were against

The atmosphere becomes cold and suddenly white light appears and it shows a woman wearing a gown her body is half skeletal

Because of fear ced ran away, but the girl were just following him