Will argument/stress cause set back in healing?

Stress does impede healing.  I encourage my patients to plan their lives to decrease stress around the time of surgery if possible.  In addition, positive thoughts are helpful throughout the surgery process.  

While it is unlikely that a single argument will cause issues with healing, overall high stress level and blood pressure could have an impact.  If your blood pressure is chronically high or spikes to high levels frequently, bleeding could occur after surgery, and chronic stress can have an impact on the immune system and healing.  It's best to check with your surgeon for a postop visit, especially if you are having a new pain.Dr. Michelle Spring

Unless your argument became physical in nature, it is unlikely to have any effect on your outcome. If you are worried it is best to let your surgeon examine you.