Buttmunker

There's a scene where Archie and Edith are sitting in their respective chairs, and Edith is rambling on about something, and Archie mocks shooting himself in the head.

This scene is shown on the inner box, and is also shown as the background in the menu screen - yet I can't find this scene on any episode in this season! Is the scene from another season, yet they decided to put the picture of the scene on season 3?