What does it mean for men to be jealous?

Jealousy is mostly due to lack of security and self-confidence, especially when there is a stronger competitor in front of you. For self-protection, in his opinion, the easiest way is to separate competitors from the women they like. Therefore, men who are usually gentle sometimes show unreasonable rude behavior.

Some boys, although jealous as hell, eat Shanxi old vinegar, but on the surface, they have to pretend to be very wise, have a very rational appearance, and even show a careless appearance in front of girls. In order to protect the face of big men, they don't want to be laughed at by girls when they find out, and they don't want to inadvertently expose their jealousy.