Classified (XY)

(No Xs only got Ys) I met you in the middle of the summer In a cute little bar, thought we'd be lovers Such a bummer, should've left when I had the chance Said you were "different", oh I should've listened To my friends when they knew there was something missing Reminiscing, I cringe when I'm looking back My ex is no ex of mine That would be way too kind So just to clarify I don't have Xs only got Ys Y did I date you? Waste of time (Ugh) Last two years are classified I've erased you from my mind No Xs only got Ys I don't need a text from a "who's that guy?" (Ugh) You don't even qualify Don't have Xs only Ys (No Xs only got Ys) I left you in the middle of the winter Think you're better with her, oh but I'm the winner Story spinner, you tell it like I want you back (I don't want you back) My ex is no ex of mine That would be way too kind So just to clarify I don't have Xs only got Ys Y did I date you? Waste of time (Ugh) Last two years are classified I've erased you from my mind No Xs only got Ys I don't need a text from a "who's that guy?" (Ugh) You don't even qualify Don't have Xs only Ys Why? Oh why? Why? Why? Oh why? Why? Who? My ex? Oh no we don't talk about him I mean I don't even call him an ex He just left me with a bunch of why's Like why did I even date him? No Xs only got Ys Y did I date you? Waste of time (Ugh) Last two years are classified I've erased you from my mind No Xs only got Ys I don't need a text from a "who's that guy?" (Ugh) You don't even qualify Don't have Xs only Ys Why? Oh why? (No Xs only got Ys) Why? Why? Oh why? (No Xs only got Ys) Why?