Good luck bro, don't be a hard a$$ on the price of the house, negotiate if it makes the house more attractive to the buyers, selling the house at a lower price than expected is better than the banks foreclosing on it and you getting nothing whatsoever from the home.
It will be a tough week but I think you can handle it, becoming self-reliant is important and when you get the job done without her help, it will be another good learning experience for you.