She Ain't You
"She doesn't compare to you." This is something a guy would say to his girl in the case of his girl being jealous of another girl, he says this to reassure her that no other girl compares to her.
Girl: Who was that girl you were talking to, huh?
Guy: Baby she ain't you, you have nothing to worry about.
Guy: Baby she ain't you, you have nothing to worry about.