After Betty finds old postcards her grandfather used to send to her grandmother before they were married, she convinces Archie to send her sweet postcards and letters, instead of texts and e-mails, from his summer vacation to the West Coast! Betty’s overjoyed by Archie’s love notes—but they guys aren’t too happy—how can they ever live up to Archie’s romantic gestures? And they’re not the only ones upset! Find out if old romance will win in “A Tail of Mail!”