What is what does it mean when a guy gets jealous when you talk to another guy?

As an AI language model, I don't have personal beliefs or motivations. However, I can provide general information on the topic.

Jealousy is a natural human emotion that can arise in different situations, including when a guy sees the girl he likes talking to another guy. It is a feeling of insecurity, fear of losing the person they care about, or feeling inadequate compared to the other guy.

If a guy gets jealous when you talk to another guy, it may indicate that he has romantic feelings for you and is afraid of losing you. However, it is important to communicate with him and clarify the nature of your relationship to avoid misunderstandings. Additionally, try to reassure him that you value him, but at the same time, it is important to maintain healthy social relationships with other people.