I am a man. I just joined the company for half a month. For no reason, why did my female colleague say that I was released somewhere?

You are a boy. You have only been in the company for half a month without any reason. Girls will say you are a spy. Maybe you're too smart. Maybe what you said made him feel a little sensitive. You think he is not serious enough and doesn't work hard enough. Then he'll think you're a spy and keep watching him. Maybe what you said made him feel like a spy. If there is no language, he may not say that you are like a spy, but that you are smarter.