In order for negotiated infidelity to work, the man has to be completely honest and follow strict rules laid out by his girlfriend/wife. Hill allows her boyfriend of two years to sleep with whom he pleases, as long as he doesn’t stay the night, spend a romantic weekend with her, or spoon with her. According to Hill, spooning is cheating.
And that brings up an important point… what happens if your man starts to have feelings for one of the casual flings he pursued as a part of this negotiated infidelity agreement? If your man breaks the rules you set forth and starts, say, cuddling with girlfriend #2, you will feel betrayed and intensely jealous. Your man could even end up leaving you for his second woman, if he starts to believe that she is “the one.”