Ask AI: Why would a guy be so rude to a girl he barely knows?Now he just smiles at her.

The behavior of the guy you described could be due to various reasons. Here are some possibilities: 1. Defense Mechanism: He might be using rudeness as a defense mechanism because he's shy, unsure of himself, or afraid of rejection. Some people do this to distance themselves from others as a self-protective measure. 2. Hidden Feelings: He might have feelings for her but doesn't know how to express them appropriately. This is common among those who have less experience in expressing their emotions and dealing with people they're attracted to. 3. Misunderstood Actions: His actions that appear rude might actually be misunderstood. He might not realize that his actions are being perceived as rude. 4. Change in Behavior: The change in behavior from being rude to just smiling might indicate that he's aware of his previous behavior and is trying to amend it, or he has resolved some issues he was dealing with personally. Remember, it's difficult to precisely interpret someone’s behavior without knowing them personally. One approach a girl could use is to initiate open, honest communication with him. This will clear up any misunderstanding and confusion regarding his behavior.