In anger management class, I learned that some people need to retreat from a confrontation because that's just the way they are. However, that retreat can be respectful or disrespectful, depending on how it's handled. Just stonewalling somebody with the silent treatment is disrespectful and sometimes even hurtful. Withdrawing from a confrontation with a firm commitment to discuss the matter at a fairly specific later time (tonight, tomorrow, etc.) is more respectful, and displays a willingness to discuss and solve the problem.
Good decisions come from experience. Experience comes from bad decisions.