Harry's Secret Girlfriend

(Post-Battle/AU/OOC) After Voldemort's Second War, both people and time move on and Harry Potter is placed in the spotlight once again. Heralded as the next Merlin, the-boy-who-won seems to be on the path to greatness but his habit of disappearing at increasing intervals draws curiosity and concern from his friends. Just what or who is it that has commanded so much of Harry's time?