Love Hurts

Grawp knows that he is not supposed to go near Hogwarts Castle, but the temptation is simply too great. With the torchlight flickering ever so magically from the castle walls, he finds himself compelled to draw even closer than before. A strange sound hits him in more ways than one. Is it just a trick of the light or is there love in the air for Hagrid's mischievous half-brother?