Haylijah

Haylijah is a het ship between Hayley Marshall and Elijah Mikaelson in The Originals, the spin-off of the Vampire Diaries  series

Canon

Hayley and Elijah meet in New Orleans in the first episode of the show, When they discovered that Hayley was pregnant with his brother's child, she moves with him, Klaus and Rebekah. During the first few months of living under the same roof, their friendship grows to be very close and strong. Later on, Hayley tells Klaus that she relied on Elijah because he was nice to her.

Elijah promises to Hayley that he will always protect her.

They first kiss was in A Closer Walk With Thee, the twenty episode if the first season.

They make love for the first time in nine episode of season two.

After that, Hayley have to marry Jackson to protect their pack and Hope, her daughter with Klaus,

Jackson dies and Hayley said "I love you" to Elijah in 3x15. He told her in 4x03.

In the beginning of season 4, Hayley saves Elijah and the rest of the Mikaelson. The Mikaelson's slept during 5 years (Elijah and Kol for Marcel's bite).

They were together in season 4 but they have to broke-up to protect Hope from The Hollow.