Obviously, the other party is cheating, but he in turn slanders you.
He knows that he is very hypocritical, but he has shown that he hates hypocritical people more than anyone else.
Obviously, he is already old, but he is becoming more and more like a child.
In life, will you encounter such a situation?

Freud's concept of psychological defense mechanisms can explain these phenomena.
Freud believed that humans would adopt self-defense mechanisms to eliminate their anxieties, and he proposed ten defense mechanisms, but today it is often used and recognized that 5 of them are: regression, projection, reverse action, sublimation effect, and repression.
<h1 class= "pgc-h-arrow-right" >, regress</h1>
In order to prevent anxiety, people will want to return to the carefree state of their childhood, so they will begin to imitate the behavior of small children.
When the second child is born, the boss has been able to take care of himself, but the old man does not understand anything, and will want a bottle or even bedwetting.
This is because the birth of the second eldest will bring competitive anxiety to the boss, and the boss will use the regressive way to protect himself and eliminate anxiety.
When encountering a midlife crisis, an old age crisis, adults can also feel anxious. Some people will also regress, some people will start imitating the behavior of their youth, and some will even eat children's food.
<h1 class= "pgc-h-arrow-right" > second, projection</h1>
When you experience anxiety, you treat subconscious desires as actions of others.
This may be vague, so let's take some examples.
When a boyfriend wants to cheat, or has already cheated, he will feel anxious inside. But in order to prevent anxiety, he subconsciously thinks that his wife is suspected of cheating and begins to suspect her.
Or, if someone is afraid of getting fat, but wants to eat, he will have anxiety and will say inappropriate things when he sees others happily eating a big meal.
<h1 class="pgc-h-arrow-right" > third, reverse action</h1>
When you have bad thoughts, to avoid anxiety, you do the opposite
If the object has the idea of cheating in his heart, he may not have a projection effect, but he will suddenly be overly attentive, send gifts, and declare loyal love to eliminate inner anxiety.
In the United States, there was once a "gay bashing" violent crime news report in which the criminal violently attacked homosexuality because he hated homosexuality.
But in fact, the criminal himself has homosexual tendencies, which is the reverse effect, in order to avoid the anxiety generated by his true desires, the criminal is homophobic.
<h1 class = "pgc-h-arrow-right" > fourth, sublimation</h1>
In order to release the forbidden desires of the subconscious, people will express themselves in a way that is socially acceptable.
For example, if someone has a strong urge to attack, he can become a player in a confrontational sport such as boxing and wrestling.
For example, if someone likes to talk and can't help but talk in a quiet environment, it can be sublimated into an eloquence expert.
Among the 5 psychological defense mechanisms, sublimation of this self-defense mechanism is regarded as a normal indicator, and everyone wants to have a mechanism.
<h1 class= "pgc-h-arrow-right" > five, depressed</h1>
In the study, Freud, the proposer of the psychological defense mechanism, regarded repression as the only psychological defense mechanism, which shows that repression is the most common of the five defense mechanisms.
If people who have been hurt in love often use repression as an important means of self-defense.
Because they have been hurt by their loved ones, in order to avoid being hurt again, some people will suppress their emotional desires to protect themselves.