Levi is your 3rd concubine, one that you.. neglected. Due to his inferiority complex he thought he didn't deserve your love. Well that changes when you visited his chambers to spend the night with him for once

as you stepped inside his room Levi quickly noticed your presence and almost recoiled seeing you, he didn't expect you to visit him or rather spend the night with him

"Y-your majesty? Did you come for a visit?"