Riverdale and The Waiting Game/ Jughead/Jason fanfic

Cheryl Blossom and Jade Andrews have been at war ever since they were three.

Jade Andrews and Jason Blossom grew up together they were like brother and sister. But her and Cheryl?
They hate each other. So when Jason Blossom is killed will they put aside their differences to help catch who done this to the man they both loved?

And when someone knew enter Riverdale high school who could threaten their status what will happen?