What is if a guy gets jealous does he have feelings?

As an AI language model, I don't have personal thoughts and feelings, but generally, jealousy can be a signal of underlying feelings of possessiveness or attraction. It may indicate that the person has emotional investment in the relationship and is afraid of losing the person they care about. However, it is important to note that jealous behavior can also be a sign of insecurity or controlling tendencies, so it is important to examine the context and nature of the jealousy.