Found this on Fanfic.net, thought I'd share the story as it was pretty amazing. Originally on fanfic.net, created and all credit goes to CaptainOntoOcean.

Marceline the Vampire Queen is back in the main drag of Ooo and is settling back down after her trip around the whole land of Ooo. Marceline and Princess Bubblegum had broken up prior to Marceline's trip. After many years, will they be able to rekindle a friendship? Or even their relationship?

Adventure Time modern AU - This is the story of how I, Marceline Abadeer, met the one person on this Earth who I could love. The one person that I knew could love me back and never leave.

heart broken, alone, unwanted, lonely, those were all the emotions that wandered through Marcelines head. After her lover Bonnie moved away Marceline spent months in denial and heart break, but what happens if a sudden move of homes reunites Marceline with her lover, or in other words her next door neighboor?

Marceline is a pure mess. She's in the bottom of the world. There's nothing on her life that wasn't gone wrong. Bonnibel is the school's princess. She's in the top of everything and everybody loves her. There's nothing in her life that wasn't going right (apparently). With apparently nothing in common, they see each other out together in a fight for a bigger cause involving the well being of many kids in school. Can they find the right balance to make this together? ~On my account you can find this story in Portuguese if you want :)~ *I DON'T OWN ADVENTURE TIME NEITHER ANY OF IT'S CHARACTERS*

why is it so hard to create a juicy caption?!

Marceline and Bonnibel... the perfect pair. If only they would realize it.

Caught in the act by her uncle, Bonnibel has no choice but to attend a school well dreaded by many. Saint Annes christian boarding school. It is only when she meets her mysterious roomate, that the path she dictates takes a turn for the unknown.

You know that feeling when you love someone so much that it hurts you to be anywhere but with them? When you can't really function or do your daily tasks because they're constantly on your mind? Yeah, it can be a pain sometimes.