Take a Letter

"Take a Letter" is the seventeenth episode of the fourteenth season of, and the 266th episode overall. It first aired on April 17, 2016.

Synopsis
"To pay for Stewie's private school, Lois becomes a postal worker. She finds a letter from Peter that was never sent to his old fling, Gretchen, dated a week before their marriage. When Gretchen tries to come between Lois and Peter, Lois has a plan of her own."

- The Futon Critic