At Finn and Jake's tree house, the two adventures were setting up for a kick butt mathematical party they were throwing, that all their friends would be attending to later that night. "Yo Finn, we go enough chips?" The yellow dog asked as he was setting up a food table.

"Heh yeah man I think we go enough chips" The human said walking outside with two arms full of bagged chips.

"This is going to be the best party ever!" The magical dog stretched his arms in the air as he wiggled them "So do you have the list of people we invited."

Finn nodded as he pulled out a piece of paper from his back pocket "Yup!" He then started naming everyone on the list "We have, Princess Bubblegum, Cinnamon bun, Peppermint butler, Lady Rainicorn, Flame princess, Marceline, Hot dog princess, LSP, Slime princess, Wild berry princess, and a few candy people."

"Alright, sweet! Now I think we're going to need more drinks" The dog then ran inside the tree house while Finn kept setting up outside.

They spent most of the day setting up for this Mathematical party and it was finally night and all they have to do now is wait for everyone to get here.

"Hey Finn! Hey Jake!" Princess Bubblegum waved as her and the candy people arrived.

"Hey PB!" Finn called out happily.

After about an hour, all the guest arrived and the party began. "Whoo!" Jake yelled out and he danced to the current song that was playing.

All in all, everyone seemed to be enjoying themselves. Finn was currently talking to his girlfriend FP, when Marceline floated over "Hey Finn! Awesome party you have here!"

The hero smiled up at his vampire friend "Thanks Marceline!"

"No problem, hero." She went to go float away but stopped remembering something "Oh Finn, I was wondering if you wanted to come over tomorrow and have a jam session!"

"Sure! That sounds great Marceline"

Flame princess, who was now starting to get jealous turned to Finn and said "Oh but Finn, I wanted you to spend the day with me. It feels like we never get to see each other anymore."

"Oh, well uhh I guess I could hang out with you tomorrow FP. Sorry Marcie but maybe the day after tomorrow we can jam?"

The vampire queen rolled her eyes "Yeah sure" she then muttered "Have fun with that lump of coal."

FP, hearing this, got up and stormed over to the vampire "What did you just say!" Her flames grew larger as she clenched his fist in anger

"Whoa calm down" Marcelince crossed her arms..

"Don't tell me to calm down!" The angry fire elemental screamed, getting ready to throw fire balls at the vampire.

"Guys! stop this!" Finn yelled at the two, who just completely ignore the human.

"Look I don't feel like dealing with you and you're anger problems right now" The annoyed vampire turned around and went to float away but FP threw a fire ball at her. Marcleine only just barley dodged it. Now the vampire was beyond angry.

"That's it!" She grabbed a picture of some kind of drink and threw it at the princess of the fire kingdom.

"Gahhhhhh!" Fp yelped in pain as steam rolled off her. Finn totally not thinking straight drew his sword and ran in between the two, closing his eyes in rage.

The hero wasn't even sure what happened next. He heard Marceline hiss out pain but he wasn't to sure why. He slowly opened his eyes and saw his sword clutch tightly in his hand, he then saw Marceline on the ground, covering her right eye, as blood seeped its way threw her fingers

"Oh my glob, Marcie! I-I'm so sorry! I-I don't know what came over me. That's never happened before!"

Marcelince looked up at the human boy with an hurt expression on her face. She got up, still covering her eye.

"Marcie, please forgive me!"

The vampire didn't reply she just floated away towards her house as tears slowly started leaking from her eyes. Out of all the people in the world, Finn was the last person she expected would hurt her. 'But once again I was wrong, he just another psycho jerk waiting to happen' She said to herself as she kept on floating away from the one person she thought she could trust.

A/N Ugh! I wrote this because I got into a fight with one of my best guy friends and I was feeling a little angry and sad and it always makes me feel better when I write and draw but yeah this just came to mind so I had to write. I know FP probably doesn't have anger issues but I no like her so I made her kinda mean in this story but yeah its just a story don't get all mad , this was the only thing that would take my mind of real life issues. So yeah I'm sure there's alot of spelling and grammar issues in here because I wrote it in a blind rage but yeah please ignore any. I don't think I'm going to continue this but If I do it will most likely end up being a Finnceline fic.