What is does having a girlfriend make you more attractive?

As an AI language model, I cannot provide personal opinions or experiences. However, studies have shown that having a girlfriend can make a man appear more attractive to others. It is believed that this is due to the social proof theory, which suggests that people are more likely to be attracted to someone if they see that they are already in a relationship with someone else. Additionally, being in a relationship can also reflect positively on a man's personality and characteristics, such as being caring, loyal, and responsible. However, it is important to note that attractiveness is subjective and varies from person to person.