She was literally snatched from her world and forced to be a goblin's wife. Not only that but she wasn't even the first wife and she wasn't loved. They should have just let her go home but the King didn't and had a child with her that he didnt love... Talk about angry.
She must have been losing her humanity by then since she'd been there so long, which means she was probably also a child stolen from her family, and not to mention she might not have been a forgiving person to begin with? I actually feel bad for her until she thought killing the other princes' who were innocent was a good idea.
