What is the psychology of people who always like to talk about others behind their backs?

People who always like to talk about others behind their backs are narrow-minded, timid, unworthy of making friends and jealous. Everyone's growth environment and experience are different, and their personality is of course very different. Some people are gentle and sarcastic and just laugh it off. Some people are narrow-minded and hold grudges. Others inadvertently provoke them, and they will also make small moves behind their backs and get back at each other. Some people are straightforward, have what they want to say, and never make small moves behind their backs. And some people like to speak ill of others behind their backs, but they dare not be arrogant in front of others and make small moves behind their backs. This kind of person's psychological quality is not very good. If you have such people around you, you can't be assimilated, don't offend, and don't become intimate. I remember when I was in college, there was a person in the dormitory who was superficial and backward. When I thought she deserved my sincere kindness, she gave me a punch. The home environment is good and life is quite rich. I like to travel on holidays and increase my knowledge. At the same time, I like to bring local specialties to refresh my relatives and friends. Traveling in the summer vacation, I thought about playing with my roommates for a year, and I also prepared theirs when I came back to prepare gifts. Then when school started, I gave it to them with great joy. They were very happy and in a good mood when they received the gift.

Later, I forgot to bring something back when I went out, and I heard something. Someone in the dormitory talked about me behind my back, and what I said was not very nice. I couldn't stand this anger and exposed her directly. I haven't spoken to her since that day, and I won't look for her in the future. People who have a good relationship with me in the dormitory have repeatedly reminded me that she is not a good person. I don't believe it yet, but now I do, because she's not just talking about me. Many classmates were told behind her back, and then she accepted the kindness of others in front of her. It's disgusting. We can't change a person's personality, but it will prove whether it is worth getting along with people for a long time. However, those who like to be talked about behind people's backs have really poor psychological quality and don't have enough courage to show up. Anyway, it's not worth being nice to her.