Like always, every time something like this comes up, it presents us with an opportunity to resolve it once an for all.
So here is what you can do:
1) Use Sage to clear the air — physically and figuratively
2) Carry Green Tourmaline (can be substituted with Peridot) to protect and strengthen your heart and so you can speak from the heart and minimize manipulation and control issues, which are possible with this configuration
3) Read or listen to talks on the art of negotiation
4) Find a way to give both to yourself and to your partner
Additionally, you can carry Black Obsidian and Smoky Quartz throughout those two days.