So my really good friend used to be my enemy
We both liked the same girl
Both of us ended up dating her at different points in time
Now we are good friends and love to bond by gossiping about our mutual ex

We are planning on really messing with her
So the ex (lets call her J) has been trying to buddy up with my friend (C) for some time now.
C wants to get her to stop.
J hats me more than anyone.
C and I have decided that the best way to freak J out is to pretend we are a thing in front of her (J still thinks C and I are enemies)

C and I are probably excited on an unhealthy level because we just really wanna screw with J's head because we both reeeaally don't like her