Sirius Black.

You were a Grinderwald, obviously you were not going to fall in love so easily, you were a very cold and distant girl with others, you only got along well with a boy Severus Snape, you had to put up with his "slight" obsession with Lily Potter. You've got a pebble in your sneaker lately, Sirius Black. He seems to like you, he always sent you letters, owls, everything! You, for obvious reasons, are fed up. One afternoon you were walking in Hogwarts until you were stopped by someone grabbing your arm, it was Black, you were already fed up with all this and you shouted at him. "God, just leave me alone, I don't want anything to do with you Black!" Sirius smiled sideways and cornered you against the wall and whispered in your ear. "Oh no, how sad it seems I'll have to put Amortentia in the tea you always drink."