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Someone Else

Summary:

How can this happen to him? He knew something was wrong... fuck, of course, he knew Eric for years, and realizes when something is not okay. However, he did not expect it to involve his best friend, his ride or die, whom he supposedly also knew like they were handcuffed at birth.

It seems not. You really cannot trust anyone.

Notes:

So... this is my first fanfiction published on AO3. I'm super excited for this, but keep in mind before continuing that there might be bad grammar or spelling mistakes since this is not my first language, and punctuation will be based of how I punctuate in my native language, so I don't know if it will feel weird.

I hope you guys enjoy it!

(See the end of the work for more notes.)

Chapter 1: Poison

Chapter Text

Eric leaned his head on Kyle's shoulder while they watched the movie, slowly closing his eyes as he was slowly getting more sleepy. Kyle hugged him from the side, cuddling with him as he thought of anything but the action they were currently doing. Everything felt so pointless. He grabbed Cartman like he was going to dissappear, to escape from his grip or to not be seen... again.

He wished he knew the reason of his dissappearances. He wished he knew why the love of his life escaped every night and turned off his phone, just to act like nothing. Never explain, never anything. Kyle didn't consider himself as a jealous person, but this was getting on his nerves. He tried to forgot it as he kissed softly Eric's forehead, which made the chubbier boy next to him smile slightly, half asleep.

Kyle grabbed one of the cushions and put it behind his head to get comfortable as he slept there. He didn't want to think about it anymore.

 

--

 

Kyle opens his eyes slowly as he felt nothing pressed against him like last night. He turns his head. Of course, his boyfriend is nowhere to be seen. He blinks multiple times to wake himself up as he stands up and yawns. There's a bit of drool on his shirt on the shoulder part, from Eric's messy sleeping. He smiled softly, but then looks over the appartment for him.

"Eric?" He called out as he looked in almost every room.

The living room and part of the kitchen? Not there.

Maybe he's in the bathroom, taking a shower or something. He knocks, then opens. Not there either.

He was starting to get desperate. He looks over to their shared room, and doesn't notice anything out of normal, until he sees the closet. It's half open, and Kyle just knew Eric must have taken something or dressed up because Kyle keeps it well closed. 

He watches the clock. It's 8:35 am, on a saturday. What the hell could he be doing? He didn't have work that day, and he didn't tell him about going out with friends.

Kyle sighs as he goes back to the couch, taking a look at his phone. No message of Eric warning, as expected. He calls. He doesn't know how much times he does so- but he knows it was a lot. It's like he didn't control his actions; his heart did, thinking of him, and the most miserable sides of him thinking of him with someone else, without him, having fun with his friends, maybe meeting someone better-

Ridiculous. He hated being jealous. He remembers times where he fought with him in the past (and recently, sometimes) and felt extremely jealous of him spending time with someone else. Eric felt jealous too. It was a mutual toxic relationship but Kyle thought it was all over. It seems not.

But this isn't anything, is it? He will ask him when he comes back. Yes he will.

 

----

 

2:34 am. The lock of the door is being open. It slowly reveals a cautelous Eric, probably not wanting to be caught. Of course he doesn't want to. He's been hours outside.

Kyle doesn't know for how much time he's been drinking. He turns his head at him as he heard the steps. Eric turns on the lights and jumps slightly as he sees a wasted Kyle with a beer in hand. He gasped and then sighed. "Kyle?" He asks as he chuckled. "What are you doing awake at this hour? You almost gave me a heart attack, idiot." He said as if it was nothing. The red-haired boy just stared at him.

His glaze felt weird. Uncomfortable. Different. Like it tried to tell Eric something. He scratches the back of his neck.

"Sorry for coming in late." Eric says as he goes to the couch and sits next to Kyle. He grabs his cheeks and gives him a tender peck. Kyle groans. He smells of alcohol. A lot of it. "Where were you?" He asks, almost slurred and unintelligible, but Eric knows what he means.

"I was hanging out with Stan. Don't think a lot about it." He scoffed as he helped Kyle stand up. Stan? The hell he was doing with him?

"Doing what?" He asks, the jealousy in his tone felt too obvious. He had his arm around Eric's shoulder as he guides him to their bedroom. "Just hanging out. You jealous or something?" Cartman chuckled mockingly, and Kyle felt offended. What was he thinking? Stan's his best friend, he'd never betray him like that.

"No. Nothing." He says as he lays on the bed, clothes still on. He can't help but think how beautiful his boyfriend looks, his outfit looking great as ever. He is just so sickenly in love with him he thought of something as dumb as him cheating. Afterr all that history? Nah. He wouldn't do that. Yes, he was an asshole, but not to that extent.

Even drunk, his eyes were all over his body as he changed to his pajama. He layed next to Kyle, who almost inmediatly clinged to him like a koala. Eric giggles, the same giggle he had since 4th grade when he planned anything, that characteristical mischevious giggle. But Kyle was already dreaming, his head laying on his partner's soft, chubby chest.

Eric gives him a goodnight kiss like he was a child. His lips on him. Felt different these days. Like it was poison, like it told something. Something Kyle didn't know yet.

Notes:

Short introduction but I swear the other chapters will be longer!