Addicted Yandere!Levi x reader x Yandere!Mikasa

Disclaimers:
The reader will be female in this. If people like this I might try to make a male reader version.
This will be in the popular Highschool AU.
Levi is 17 while Mikasa and the Reader are 16.
Also, there will be:
Gore
Swearing
Characters being out of character
And Sex scenes

Now that that's out of the way let's summarize.
End of her junior year (Y/N) decides to go to prom for once in her life. That's where she went wrong. (Y/N) ends up catching the eyes of both Mikasa and Levi Ackerman. (Y/N) starts to crush on both of them until she learns the truth. Can (Y/N) handle the mess she's made or will she have to pay the price?