Why would a guy act flirty one minute and very cold and distant the next?

Anonymous

I noticed this guy staring at me and giving me a cheeky smile when we first talked. When I ran into him a few days later and greeted him he seemed like he did not want to talk to me and looked at me like I'm the most boring person in the world. Why? He doesn't know much about me and I didn't come off as boring

Why would a guy act flirty one minute and very cold and distant the next?
7 Opinion