Haikyuu x Reader

Green Hearts. Kuroo Tetsurou

*Warning: kuroo's like . . . hella mean?? like unnecessarily mean*

Usually the chime of your phone was easily ignored, but even he couldn't help but get the tiniest bit frustrated when that small ding stole your attention away every few minutes, a cute smile on your face as you raised your phone up to snap a quick selfie. And it would've been fine. Kuroo had always stood idly by as you flirted and talked with other guys, being your shoulder to cry on whenever your heart was inevitably shattered into a hundred pieces. He was there to help you type out responses and laugh at the boys who thought "Hey" was a good enough opening line to get your attention. Kuroo was that friend. The best friend who was always down to listen to your girl problems, who had a steady stock of tampons and Midol in his club room locker just in case, your meme supplier and the one person that you would have trusted with your entire being. Yes, Kuroo was your best friend and that's all he could ever want to be.

Well, that's what he always told himself anyway.

But, it was your phone alerting you of yet another Snapchat that finally drew his eyes down to your screen. You snatched it up so quickly, clutching it to your chest as if you were doing something that you shouldn't be. If that wasn't enough to raise his suspicions, the way your eyes kept darting towards him every few seconds while you tapped out a response, each glance only making you seem to shrink further into yourself.

"Who's in your DMs this time?" The remark was teasing enough, a simple question that he's asked dozens of times, but this time your response was different. Your normal giggle as you would sidle over to him so you could show off an Instagram profile was only replaced by a shake of your head and nervous laugh as you rubbed the nape of your neck.

"It's no one."

"I'm pretty sure someone is blowing up your phone. Come on, show me! How am I supposed to scare him o- I mean- help you talk to him, if you don't at least give me a name?"

Kuroo scooted closer to you, but you only slid away from him, the grip on your phone tightening even as it alerted you of an incoming message. "Kuroo, really. It's just some guy."

"Well, yeah. But, you at least have to tell me who." His hand reached out to gently pull your phone screen towards him.

He wishes he hadn't.

Snapchat from Daishou Suguru 💚

Kuroo's normal teasing smirk fell before he even had the chance to catch himself. A hardened stone settled in his stomach and no matter how hard he tried, there was no overlooking it. He wanted to smile, pretend to be happy for you, put on his usual smile and laugh and tease you about your new beau until the day would come when it would all come crashing down around you. But, he couldn't even bring himself to say a word, let alone push a fake smile.

Really? Of all people, you chose him? Had Kuroo really taught you nothing about that sneaky bastard? He was a manipulative, lying snake who was just going to throw you to the side when he got bored. He didn't care about you. Not like-

Kuroo couldn't keep that scoff away. His entire being felt heavy, head pounding at a rhythm steady with his heart. He was sure that if he dared to open his mouth, he wouldn't have anything good to say to you. Kuroo felt his fists clench, nails digging into the palms of his hands as his jaw squared.

"You're mad," you state.

Of course he was mad. He was angry and frustrated and- and, well, he didn't really know. He did know that he couldn't stand the thought of Daishou Suguru being anywhere near you. That snake holding your hand, smiling at you, kissing you? Kuroo could have thrown up his lunch right there at the mental image of you and the one person that he hated most swapping spit. What was even so great about him? Daishou wasn't anything exceptional. He wasn't that tall. He didn't have an impressive physique. He was smart, but there were definitely better options. Kuroo just couldn't wrap his head around what the hell you were seeing in someone like him.

"I really like him, Kuroo. I know that you two have beef, but come on. He's really a good guy. He's one of the sweetest guys that I've ever talked to. You're my best friend. Please, just let me try to be happy, even if it is with Daishou."

He had never felt more hurt. Hearing you utter that he was your best friend felt like someone had just taken a knife and sank it hilt deep into his chest, leaving him to bleed out on the floor. That's all he was to you. That's all he ever would be to you. Kuroo Tetsurou was simply your best friend and that's all he would ever be. But, as time continued to tick on by, he found himself hating that idea more and more. He didn't want to be your best friend. He was already the one that you ran to when you were upset, but he wasn't the one who would sit you in his lap and kiss the top of your head to tell you that everything would be okay. He wasn't the one who got to send you sweet good morning and good night texts with heart emojis and cute pet names.

"He's just using you, you know that right? The second Mika says she wants him back, he's going to forget about you," Kuroo says, leaning his head back so he didn't have to see the way you physically flinched at his words or the way that your whole body trembled as you shrank further into yourself, becoming smaller than a mere field mouse. He leaned his head back so he didn't have to see your heart shatter into a thousand different pieces from his words.

"Y-you don't know that."

He rolled his eyes, a bored expression painted across those features that you knew so well. "He doesn't want you. He wants a distraction."

"Kuroo-"

"Daishou doesn't give a shit about you, but if you don't want to listen to me, that's fine. Just don't expect me to be there when he hurts you."

Your phone buzzed again. Another Snapchat from Daishou to tell you to have a good rest of your school day, that he would talk to you when he was done with practice, that maybe you guys could call tonight if you were free, to remind you that he really did like you, signed with a simple green heart emoji. But all of that didn't matter to Kuroo. He didn't care what the Nohebi captain said to you, it didn't change that undeniable overwhelming sense of envy that completely and utterly consumed him.

The bleachers creaked as you stood and the weight shifted, each step only bringing another groan from the wooden seats. Kuroo finally looked at you, a completely defeated shell of who you used to be. There was no smile that would push a matching one to his own lips. You weren't laughing and leaning into his side. No, you were walking away from him without another word, your phone clutched to your chest, eyes focused on the ground because you were sure that if you looked anywhere else, everything would come pouring out.

Kuroo Tetsurou was your best friend, but he had wanted to become something more for a while now. Watching you walk away from him without so much as a goodbye? He was sure that he had ruined any relationship that he had ever had with you and any chances of pursuing something further. He was so busy trying to convince you that Daishou Suguru would be your ultimate heartbreaker that he didn't even realize that he was causing you some of the greatest pain that you had ever felt all because he was in love with you and his bitter rival just had the balls to tell you how he felt first.

The green heart was the ugliest emoji that Kuroo had ever laid eyes on, but there was nothing else that better described him. A heart filled with twisted green flames of envy, a horrible sight really.