Why do people in Houston, TX always ask me if they know me?

It's always men. White, Hispanic, Arabic. This only happens in Houston. A waiter. A car salesman. A random customer at a store I'm in. And I don't live there but I visit my bf. This never happens anywhere else. Yesterday I was at a store and a very attractive male customer was STARING at me as he was walking out, right infront of my bf, but my bf didn't notice. He was turning his neck and never broke eye contact. I did once and looked back and he was still looking at me (I was dressed normal and there wasn't anything on my face or anything besides a mask). He wasn't being rude he looked friendly. But then I just looked away because....what was the point. Then I was thinking if he tried to talk to me, he'd probably ask if we met before. Then I started thinking of other times people would randomly ask (also infront of my bf) if we've met before. One guy said we probably met in a previous life. I thought he was flirting but it just seems weird why do they all say the same thing???