1. Large emotional fluctuations: Jealous men are often prone to losing control of their emotions and may become extremely angry and dissatisfied over trivial matters, even exhibiting aggressive language or behavior.
2. Strong possessiveness: They will show extremely strong possessiveness and pay excessive attention to their partner's social activities, interactions with others, etc. They may even try to restrict their partner's freedom, hoping that their partner belongs completely to them and not allowing any form of "betrayal".
3. Sensitive and suspicious: Jealous men are often filled with anxiety and suspicion, interpreting their partners' behavior and words excessively, and easily mistaking fabricated things for facts, leading to a crisis of trust in the relationship and exacerbating conflicts and tensions between both parties.