Gift drabble - Girl Of Interest

Gamer struggled to her feet, the rubble and debris shifting around her, and she began coughing in the dust.  She had no clue how long she had been out or if the others were still fighting in one of the upper levels.  The floor had caved in and now she seemed to be in a ruined basement level of the old hotel.
I gotta get back to the others, she thought desperately, picking her way through the debris.  Gar and Nat are going to be worried sick.  Codi and the others too.
To say nothing of how her brother would react when he found out.  Three years of field experience and Cos still treated her like a fragile little snowglobe!  She was sixteen now, she could handle herself!
As her thoughts wandered and she tried to find a stairway of some sort up to the floor above, she heard a soft rustling sound behind her.  A shiver crawled up her spine and she spun around, trying to find the source of the noise.  But she could see nothing in the poor light.
“Rats.  Great.” She whispered to herself.  After all, what basement didn't have them?
She looked back where she was headed and jumped, heart almost skipping a beat in fear.  A tall, lithe figure stood in the darkness, watching her with half-lidded eyes ringed with dark shadows.
“Hello, Cassadi.” A soft male voice murmured as the figure took a few steps forward.  Immediately she jumped backward to keep the same amount of distance between them.
“Wh-who are you?  H-how do you know my name?”
“I've been watching you, Cassadi.  You've got potential.  Real potential you know, not like those losers up there fighting my pals.” He replied, reaching out with a gloved hand and grabbing her by the wrist.  “You're a gorgeous babe too, not like the other girls around here.  You're more of a humble, down-to-earth kind of beauty.  Sweet enough to bite, almost.”
“L-let go, you creep!” She protested, trying to jerk away.  “I'm going to—“
“You have no idea what you do to me, Cassadi Krank.  You enflame me.  I want you, and I will make you mine.  I take what I want.  You're gonna be mine.”  He said in a low hiss, leaning in close to her.  She screamed and tore her hand away, scrambling backward, tripping and falling all over the debris.
“NAT!” She shouted at the top of her lungs.  “CODI!!  GARFIELD!!”
The mysterious boy threw back his head and started laughing, a nasty, mocking sound.
“You think Garfield Logan's going to protect you?  He's a pathetic waste of power.  He can't even protect himself, let alone anyone else.  You should be mine, Cassy.  I can protect you.  I always protect anything I call my treasure, you know.”
“Shut up!” She yelled at him.  “Shut up, shut UP!  I'm not some helpless little girl and I don't need a freak like you for a boyfriend!”
“You do.” He replied, and she thought she caught sight of a speckled, serpentine tail curling awkwardly behind him.  “Do I have to kill Beast Boy to prove it?  Because I will.”
Furious, Gamer seized a nearby chunk of broken rubble and flung it toward the boy.  She dodged it and the small missile shattered against stone.  Shouts came from above and she darted toward the hole where she'd fallen through the floor.  In seconds, three familiar faces were looking down at her.
“CASS!  Oh thank God!” Nat shrieked.
“Don't move, we'll be right down there!” Codi added.
She breathed a sigh of relief, allowing herself a quick smile.
Hot breath tickled her neck without warning.  Lips pressed against her ear in a whisper.
“Another time, then.  I'll see you again, Cassy.  And tell the Titans Nathan Prince says hi.”