Responding to rudeness with argument means stooping to their level. You are actually doing the right thing by walking away and refusing to deal with their negative mindset. You are actually empowering yourself to rise above it all. You should congratulate yourself on taking positive action to manage your interactions. Each time you choose not to argue, you are proving that you have control over your own emotions. You are not giving anyone the satisfaction of pulling you into their bitterness. That is quiet strength. You are setting boundaries and showing that your peace of mind matters more than their opinions. Walking away is not weakness, it is wisdom. It shows that you value yourself enough to decide where your energy goes. You cannot stop people from being unkind, but you can stop them from having power over how you feel. That is real control, and it is something to be proud of.