II. Is Jealousy Only for Girls?
When we think of jealousy of friends, the first thing that comes to mind is probably the "Times Sisters" tearing each other apart or the "Gossip Girl" love and fight.
In many people's minds, jealousy is a girly thing. Even the word "bosom friend" has become synonymous with jealousy, and "bosom friend" is not a friend, "brother" is a friend.
It seems that women are given the right to be jealous because they are born to be more sensitive and emotional. But if a guy expresses his jealousy of a friend, he may be commented, "Aren't you a man?".
In fact, research has found that men and women experience jealousy in intimate relationships at roughly the same frequency, but in different ways.
One reason for this is that there are gender differences in same-sex friendships, with female friendships mainly characterised by emotional sharing: they are more self-expressive and emotionally supportive; therefore, chatting is very important for girls.
Male friendships, on the other hand, revolve around shared activities, doing things together, playing basketball together, or going to the pub.
When faced with good friends around them, males may tend to turn jealousy into approval as a way of boosting their sense of self-worth and using this as a form of social capital.
For example, males will usually say, "See that awesome guy? That's my (alliteration) buddy."
Or, males may express their jealousy in the form of direct aggression, looking down on the other guy, calling the other guy "showy," or even getting into a fight.
Of course, categorising by gender is too simplistic and unrealistic. We should not prescribe "what men/women must be like". In friendships, the differences between individuals are likely to be greater than the differences between gender groups.

III. What State Is the Envied Person in?
We've discussed a lot about the psychology of the person who is jealous, and the truth is that in a friendship, the one who is envied often feels more embarrassed.
If you feel envied by a good friend, how should you face the relationship and get along with each other?
My colleague had been jealous of by an old good friend, and her friend had expressed this feeling to her: "Actually, I have been quite jealous of you before, we have been classmates for so many years, and your grades have always been so good, you went to a prestigious university, and you are better than me in all aspects of ability."
My colleague's first reaction to these words was, "How could I be so good as you say?"
Behind jealousy, there is usually idealisation, where a friend can only see what we choose to show, but we are able to see all of ourselves. So through the eyes of jealousy, the advantage is magnified and the disadvantage is ignored.
In addition, the envied person often develops self-blame and shame, and it seems that whether he or she wants it or not, he or she seems to have taken away some resources that should have belonged to his or her good friend.
With a dazzling friend, people will see your friend first; bosses will favour your friend who is better at his or her job; and friends will prefer your friend who is funny and humorous.
Therefore, the envied person usually engages in more pro-social behaviours (van de Ven, Zeelenberg & Pieters, 2010), offering to help his or her friends, or even making a fool out of himself or herself by deliberately putting down his or her achievements as a way to ease the relationship.
Jealous people always focus on the advantages and strengths of others.
But isn't that what good friends do? It's because we see each other's sparkles, tolerate, even like each other's shortcomings, that we cherish our friends so much, and that we treat him or her as our best friend.
Jealousy of a friend isn't such a terrible and intolerable thing; if you can handle jealousy, then your friendship can withstand anything.