My crush called me ma’am today. should I be flattered or worried my age is showing?

I live in Texas.. so maybe it’s not that big a deal.. but should I be worried? Does he not see me as a romantic interest? Usually people think I’m younger than I look. I get hit on by 16-18 yr olds lol.
My crush called me ma’am today. should I be flattered or worried my age is showing?
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