You may wonder why your friend has turned against you. Later on you mention the incident to your friend, who tells you he was so preoccupied at the time that he didn't even see you. Normally, you will feel better and put the incident out of your mind. If you are depressed, however, you will probably believe your friend has really rejected you. You may not even ask him about it, allowing the mistake to go uncorrected.
Depressed persons make such mistakes over and over.
In fact, they may misinterpret friendly overtures as rejections. They tend to see the negative rather than the positive side of things. And they do not check to determining whether they may have made a mistake in interpreting events. If you are depressed, many of your bad feelings are based on mistakes in thinking. These mistakes relate to the way you think about yourself and to the way you judge things that happen to you.