Hayley needs to be with an alpha wolf and the person she could relate to. No matter how sweet Elijah is to her, he will never be the one to understand her, to relate to her because he has no idea what it is like to be a wolf and its responsibilities. Elijah and Hayley don't even have that much chemistry. I don't know what people see. Jackson can't be the one for Hayley either because he can never relate to her past and her desires. Jackson is not a real alpha. Klaus, however, is the alpha wolf, he can relate to Hayley because they have similar pasts and similar souls. I love the idea of the almighty powerful Original Hybrid, King of New Orleans, with the gorgeous, rebellious and witty Werewolf Queen, Hayley. They are practically soulmates and I love their chemistry and dynamic since day 1. This is coming from someone who has just begun watching The Originals and has never watched The Vampire Diaries. Klaus and Hayley have way too many parallels and many clues have been given on the show for a future for them together.