5 Seconds of Summer Imagines

i'm not the only one // c.h

A.N: It's based on the lyrics of 'I'm not the only one' by Sam Smith

"I can't believe you let me down but the proof's in the way it hurts."

"Baby I'm out tonight." My boyfriend Calum spoke as I walked into the living room. He was sitting on the couch, obviously texting with someone. "Again? You've been out last night." I sadly stated. "I know, I know but I have made plans with Ashton. Sorry baby." he mumbled not looking up from his phone. "You seem to say that rather often lately." I declared.

For almost seven years Calum and I have been dating, with up and downs of course but lately the downs seem to take over. For almost one year things have been different. I don't really know how to explain it but Calum has been distant. We fight more over things that are not even worth fighting about, he is out almost every night and when he comes home he barely talks to me. Of course I had the worst scenario in my head but I wished, I prayed that it's not true.

Calum sighed and put his phone on the wooden table in front of him. "Babe," he sighed and rose from the couch, "I really am sorry okay." he pouted and slug his arm around my waist. He gave me his puppy eyes look before he said, "Please don't be mad." Calum knew exactly that I couldn't stay mad at him if he looked at me that way. "Fine." I mumbled, "But you'll stay home tomorrow, alright?"

His lips curved into a smile, "Promise." he said and pecked my lips. "I love you." I smiled, before he could answer his phone started ringing. "I'm gonna get that. It's probably Ashton." he said, quickly grabbed his phone and rushed out of the room.
I remembered I had to ask Ashton's mom something about the babysitting job I had ocasionally so I followed Calum in the other room to tell him I had to speak to Ashton for a moment. I stopped my tracks when I heard Calum mumble something about tonight.

Normally I wasn't the curious type and I wouldn't have eavesdropped but it didn't sound like he was talking to Ashton at all.

".......sure. Can't wait to see you either.....No of course she doesn't suspect anything.......Hmh......Oh baby can't wait to see in you in that thing.....Much sexier.....Damn stop that....No, I have to hang up now. See you later baby." Calum said and hung up the phone with a smug look on his face.

My heart sunk to my knees, I took a deep breath and slapped my hand in front of my mouth to keep myself from screaming out. Tears were stinging my eyes but I blinked them away. My worst nightmare has become real.

But maybe he isn't cheating on me....Maybe.....maybe...

I decided not to confront him just yet, I wanted to see for myself what he was up to. I took another deep breath and walked back into the living room, turning on the tv. A couple of minutes later Calum joined me, "What did Ashton want?" I asked as if nothing happened. "Oh nothing really, he just wanted to know when we meet again." Not even a flinch. He was always a good liar.

Somehow I had to get his phone out of his pockets to check who he was really talking to. "Hey, I thought about tonight again and," I started and straddled Calum's lap, "why can't you stay in? You'll have so much more fun with me than with Ash." I said and placed my hands on his thighs, rubbing over them slightly. When my hand found his phone I carefully pulled it out of his jeans and hid it under the cushion. Luckily he didn't notice a thing since I distracted him with kissing his neck. "Probably. But it's uhm it's really imporant you know." he murmured. "Fine." I shrugged. "Your loss." I lifted myself up and sat back down on the couch. "Well uhm I have to go now. Sorry again." he said and gave a kiss on the cheek before he stormed out of the house.
To my luck and surprise Calum didn't realize his precious phone was missing. I quickly got up and checked if his car was gone before I ran back to the couch to get the phone. With shaky hands I unlocked it and checked his last calls first. Okay there was his mom, me, Luke and his last call was just a letter, H.