What is what does it mean when a guy calls you dude?

When a guy calls you "dude," it usually means that he sees you as a friend or a casual acquaintance. The term is often used as a gender-neutral way to greet or refer to someone, and is associated with a sense of familiarity and casualness. It may also indicate that the guy is not romantically interested in you or is not considering you as a potential partner. However, it's important to note that the meaning of "dude" can vary depending on the context, tone, and relationship between the two individuals.