sebastian sallow is utterly obsessed with marianne buckley. he stalks her every movement and would die for her. he would do anything for her. every waking moment of his day is spent yearning for her. elio dalton is also obsessed with marianne, he is willing to do whatever to get here. marianne is completely oblivious to this and is sworn enemies with sebastian and elio, as they are dark magic obsessed slytherins, and she.. a slytherin against all dark magic.