Cole Sprouse and Lili Reinhart have officially gone public with their romance! The Riverdale costars and longtime rumored couple attended the Met Gala together in NYC on Monday night, and we're dying over how cute they are. While Cole traded Jughead's crown beanie and Serpent jacket for slicked back hair and a fitted suit, Lili, who plays Betty on the hit CW series, looked absolutely gorgeous in a silver dress and matching eyeshadow. They even did a cute couple pose on the red carpet as Lili placed her hand on Cole's chest. Can you hear us screaming? Catch a glimpse of their adorable outing below and get ready to swoon big time.