Question

First or last name acceptable. Snaketail fell in love with this person after seeing her, but in response she fatally stabbed him in the heart. Another lover gave this person a bouquet of pink roses that turned into a floating black flame (15[1])when he sang a chant beginning “Petulus merengo”. This person reunited two boyfriends and filmed them making love with an iPod, which later transformed (-5[1])into a time machine. During a showing of The Exorcist, this person slipped Amnesia potion into Satan’s cigar so he would fall in love faster. This lead singer of (*) Bloody Gothic Rose 666 attended a Good (10[1])Charlotte (10[1])concert with a love interest, then had sex in the Forbidden Forest before being discovered (10[1])by Albert (10[1])Dumblydore. For 10 points, (10[1])name this bisexual vampire and girlfriend of Draco Malfoy, who shares her surname with the lead singer of My Chemical Romance. ■END■

ANSWER: Ebony Dark'ness Dementia Raven Way [accept either underlined part; also accept Eboby, Enoby, or the like]
<Other (web literature) | My Immortal | BC>
= Average correct buzz position

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