words: 1428

warnings: |none, hooraaaay|

summary: reader finds out that Dean has been cheating on her with a "mortal" enemy of hers...

You looked at your backpack lying next to the door of your bedroom. On top of it, your coat was waiting for you to wear it.

How could he do this to you?

After all you've been through, how could he, Dean Winchester, cheat on you, with that god-awful woman. He knew you hated her. He knew. But he didn't care. Your eyes blurred at the memory.

You and Sam had just returned from a hunt. There was a small vampire's nest that had gone mental, and someone had to take care of it. Dean refused to come due to a "sprain" he had gotten on the last hunt. Sam and you agreed to leave him; after all, he could use the sleep and rest for the big case.

Sam and you made a record that night, and had killed each and every one of them damn vampires in four minutes. You were going to celebrate it, but when you returned home, Dean wasn't there. Naturally you cleaned yourself up, and went to the kitchen to grab a piece of pie. Dean had still not showed up when you flopped down to the soft feathery bed, which seemed like a luxury. You fell into a soundless and dreamless, yet full of agony and stress, sleep.

You woke up at five in the morning, when you finally felt the bed shift. You smirked and relaxed. Dean was home.

You were about to drift back to sleep when your phone vibrated. You checked the bright little screen and as you unlocked the phone, your heart sunk. The name of her was on your screen. Her face was on your screen. Her face smiling at the camera mischievously while being kissed by Dean. Your Dean.

You withheld a sob while you scrolled down the rest of the photos. Millions of them, with Dean sleeping besides her, Dean smiling while kissing her, Dean looking at her, the way he was supposed to look at you.

You felt sick. Maybe this was a horrible mistake. Maybe Dean could deny it. Maybe… just maybe, there was still hope.

You decided that you would pass the thirty minutes you had left until the boys woke up, at the couch. But before you did so, you checked Dean's clothes. They smelled of a foreign cologne, and deep inside the pocket of his pants, you found a used condom.

When Dean woke up, he found you sitting on the couch with a glass on your hand. And as he had done for the last two years, he hugged you and kissed you good morning. He acted as if nothing had happened only three or four hours ago.

That arrogant bastard. How could he do that to you? You loved him, and cared for him, more than you had ever cared for any other person. Yet you never admitted your love, because deep down you knew, he would run away if he knew.

You knew that dating Dean Winchester, the famous "womanizer" as people tend to call him, was like a game. A game that involved mental pain and a broken heart. However if played correctly, the game could present eternal happiness and lifelong love. Apparently somewhere in between, your pone made a wrong turn. And you lost it. You lost the game.

Dean must have realized that something was wrong; from the way your body froze when he hugged and kissed you.

"Baby…? Is… is everything alright?" You could see a small bit of anxiousness crawl into his handsome features.

"Yeah Dean, everything is completely fine", you said trying to remain calm, and not show any emotion.

"(Y/N) are you sure? Why weren't you in our bed?", he asked and you could see fear replacing the anxiousness in his deep green eyes.

"I just had a nightmare… that's all" you lied. Well sort of… you were living inside one at this exact moment. "I needed a bit of fresh air and a cold glass of water"

Dean watched curiously your glass, and then as if he was testing his nose, he sniffed it.

"(Y/N)… this smells like vodka…"
He glanced up at you.

"Uh well…" You had to get away from him. This was as much as you could handle. "I need a shower", you said and quickly run of.

And here you are now, starring at your backpack. All your life, inside one backpack.

- o -

The bedroom door opened and Dean entered. He smiled as he saw you sitting on the bed, but his smile quickly faded once he saw what you were starring at.

"(Y/N) what is this?" As if he didn't know.

"I'm leaving Dean." Tears threatened to fill your eyes.

"What! Where are you going? Is it a case? Can I help? Talk to me baby!"

"Dean, I think you know perfectly well the reason why I'm leaving." You smiled and looked at him. He looked back at you blankly.

"Baby, I don't understand…"

"You cheated on me! You cheated on me with her!" You half shout at him. "Stop denying it already! I know. I know alright?"

He drops down on his knees. "Baby, I didn't mean-"

"Save it." You quickly said. "I don't want to hear it." You took a quick and small breath as you continued. "Don't follow me. Don't call me. Hell don't even text me. I don't want to know you anymore."

"(Y/N) I-" He put his head on his hands. "I don't want to lose you. Please don't."

"Then you shouldn't have slept with her." A tear cascades down your cheek. "I loved you Dean. I loved you and you betrayed me." You took another breath. You could do this. "I'm going to leave now. I've gathered all my stuff. It will be like you never knew me." You got up and took your backpack and coat. "I'm going to say goodbye to Bobby, Sam and Cas. Please, please! don't make it harder."

And so you left him. The man you thought that had changed for you. The man you loved for three years. The man you've been with the last two years.

- o -

Sam, Bobby and Cas stared at you, as you explained the situation and the reasons for which you had to leave. They knew they couldn't make you stay and so, Bobby and Sam made you promise to text or call at least once a day, just to be sure that you were alive. Cas hugged you and promised that he'd come whenever he could. When you opened the door to leave the bunker, you heard three voices in unison shout: "DEAN! WHAT THE HELL DID YOU DO?"
You smiled at that and proceeded to your car. There was one last thing you had to do.

You opened your phone and scrolled down to that devilish message. You forwarded it to Dean. And below it you wrote:

"This is how I know. Oh, and you had a used condom in your pocket. And you smelled like her. You should probably wash your clothes.

I wish I knew what I did wrong.

Goodbye

(Y/N)"

And with that you started your car, and left the bunker. The only place you had finally come to call home.

- o -

Deans POV

I've been starring at our- I mean my- empty bedroom for at least four hours now. I've been kneeling for what seems like eternity. She's been away for at least five hours. I keep thinking that she'll be back in a moment, smiling and laughing. That she just went on a supply run with baby. But it wasn't the sound of baby that I heard when she left. It was the sound of her car. The car she detested. The car she hated. The car she never used after the accident.

When Sam and Bobby screamed at me, all I could do was stare at them. Stare at them like an idiot.

"I loved you Dean. I loved you and you betrayed me."

I keep repeating this into my mind. It has become a mantra.

"I loved you" She loved me.

What have I done?

When I finally stand up, I am determined to find her. And when I open my phone, I can see that she has texted me. Hope, unbidden, starts filling the emptiness that sprung when she left me. But when I open the message, my phone drops from my hands. I should have known.

How could I have been so stupid?