Hermione beings to realize that change is inevitable and that includes Draco Malfoy. Over time they form a friendship that is bound to soar higher than any other, that is until Lucius Malfoy gets wind of who his son his spending time with.
This would have been the best moment of his Hogwarts existence, but it wasn’t, he had loved Hermione Granger, and still did, but he knew that she’d only get hurt, and he paid the sacrifice to wipe her tears, and that sacrifice was his heart.