Watch who becomes uncomfortable when you stop explaining yourself.

Some people rely on your habit of explaining yourself, because it gives them a role as the one who evaluates and approves. When you stop, they lose that position and often react to the loss rather than to anything you actually did. Watching who becomes uneasy is genuinely informative. It shows you where a relationship rested on your justifying yourself.

Try answering with a decision rather than a defence, once, and observe the reaction. People who wish you well tend to be fine with it. Those who are not are telling you something worth knowing.