Why would a guy be possessive over a woman he doesn’t know? What do that mean?

Why would a guy be possessive over a woman he doesn’t know? We’ve never talked but so possessive when I’m around other guys.

I won’t say “he doesn’t know me” but not on a personal level.

Why? He gives guy I’m conversating with a stern look

or maybe he’s just a player

Why would a guy be possessive over a woman he doesn’t know? What do that mean?
Post Opinion