Well, I was sparked and ready to write a fanfiction. So here it goes bro!

Rain tapped against the tree house window and a blue glow emanated throughout the wooden living room. Fionna rested her blond head upon Marshall Lee's shoulder as they watched their favorite action-flicks. Marshall took in the comfort from her plush couch, since he usually levitated everywhere and only sat willingly whilst around Fionna. He subconsciously enjoyed having her warmth on his shoulder and grew accustomed to sitting with her. That night they had been hanging out since 8 and the clock just turned to 2:40. It was only normal that the once giggling girl was now silent and to Marshall's suspicion she was dozing off on him again. He nudged her playfully, "Hey Fi, you sure you could pull an all-nighter with me?". She mumbled with her eyes closed, "You bet. Sleep is for losers who can't handle reality", her words seemed to get less and less audible as she talked. He cackled at her empty ambition, "I think this is another night where I end up a winner", he lightly lifted her and shut off the TV. Beemo and Cake were already asleep so he furtively crept up to her room.

Once she noticed her surroundings she sighed quietly, "You cheated, I'm always adventuring with Cake all day before we hang out. Next time you need to adventure with us. On foot". He scowled, "That feels too gross, if you've spent as much time off the ground as I have you'd understand". He tucked her in and readied his umbrella. "where do you go after we hang out?", Fionna questioned, half awake and not wanting him to go so soon. He turned to her, "Well, I don't sleep very well at night, usually I just hang out by a lake. And I don't want to sound too sappy, but it's probably one of the best places to see at night". Letting out the tiniest bit of her giggles she breathed, "We should go there tomorrow, if it's not flooded in this weather". He leaned over her to kiss her forehead and agreed to take her the following night.

This memory was kept fondly with Marshall along with every other one about that crazy blond girl. Every night now he felt terrible knowing how far apart they had grown. It was ridiculous he couldn't even hang out at night anymore, or rather he chooses not to. She only talks about Flame prince and slowly found herself leaning to the couch's arm rest whenever they watched movies.

If asked he'd probably never admit that he felt the sting of jealousy around those two. He sort of felt betrayed in a way. It was almost as if he just always assumed he and Fionna had a thing going. So when this prince shows up, his place with her feels taken. Fionna tried to get them all to hang out but Marshall isn't dumb enough not to feel Flame Prince's unwelcoming vibe.

She actually just called the night before leaving a voice mail asking if he were free for a night at the lake, and here he was now, hanging around alone in his bedroom. He imagined Fionna being there, waiting alone and staring in the direction he'd never end up coming from. This thought lingered ever since the day started. And as the hours went by it seemed his guilt slowly built it's way up. Marshall couldn't just go to the lake though, He hadn't been there since before Fionna's obsession with Flame Prince. It would be too weird, and it wouldn't feel right, he figured.

Trying not to worry he made up little scenarios like, maybe she got bored after three minutes and decided to hang out with Flame prince again, or maybe she hadn't shown up, since he didn't return her call. Either way she still probably thought of him as a jerk who had forgotten about her, which was far from the truth. In the time they spent away from each other he had half a journal full of songs he wrote about their fondest memories, most pages were scribbled out since he thought they might have been a little bit too dumb or emotional.

Thoughts were starting to take him away until he noticed his phone was ringing, which snapped him right back into reality. Shaking, he picked up the phone and placed it to his pointed ear then hesitantly pressed talk. The voice on the other side sounded surprised, "Marshall? Will I see you at the lake? It seems like I can never get a hold of you now a days", she paused waiting for a response on his end then continued, "Well, I was just calling before I head out there. I actually have been going there every night for the past three weeks but I haven't seen you", there was still no response from Marshall's end of the line. He just listened to her voice. It was so strange that she had changed but her voice remained the same, "Hello? Where have you been? Do you hang out so-", "I'm not going" he interrupted harshly, soon regretting his rude action. Fionna felt a little stung by his sudden response but was more surprised to hear his voice, "Marshall, your voice- are you alr-", he hung up on her then released his hovering body from the air to face-plant in his pillow.

He felt his throat contract and tighten and tried to fall asleep. "You're a thousand years old" he told himself, "You should be an expert at sleeping". The truth was he hadn't slept since he and Fionna stopped hanging out. His voice was scratchy, dry, and even surprised him whenever he heard himself speak.

When he had finally gave up trying to sleep, he traveled over to his writing desk and wrote a few more songs, but quickly trashed them. Frustrated, he leaned back, but collapsed with surprise when there was a knocking at his door. It was 9:50pm, and who'd expect company at that time? Marshall picked himself up, acting as if that had never happened and peeked through the peephole.

He was conflicted whether or not to let Fionna know he was home but couldn't resist opening his door. Ignoring how tired his face appeared she let herself in and embraced him. The sudden contact took him by surprise from being in the mental state he was in. She didn't let go of him as fast as their old usual hugs were, either. He lifted his arms to hug her as well, being a little slow to react.

"please tell me nothing is wrong, Marshall", she was obviously worried. He was silent, wishing their hug wasn't about to be over, "I'm sorry I haven't talked to you, Fionna. I feel so selfish right now". She lightly pulled away, "I just don't understand why. You're my best friend". Marshall looked away from her face not wanting to meet eyes, "You're my best friend too.", She was staring directly at his face so he needed to break the tension. "Would you like to watch a movie, or something?" Her gaze moved over to the couch, "on that uncomfortable thing? no way. You should come over to the tree house again.", He thought for a moment, then realized he hadn't left his cave in a long time anyway so he took up her offer. "As long as we're watching action flicks".

There they were, on the plush couch again. It was 2am, and the all-nighter contest ended with a tie.

(to be continued, maybeeeee)