[s4e6] Now I Know, Don't Be Scared -

Vengeful as ever, Edie visits Gabrielle's husband, Victor Lang, and shows him incriminating photos of the two together, setting off a major conflict for the rest of the season.

After finally breaks up with her, Edie Britt discovers the secret affair between Carlos and Gabrielle. [S4E6] Now I Know, Don't Be Scared

While it seems like a comedic subplot, the possum serves as a metaphor for the cancer Lynette was battling at the time. Vengeful as ever, Edie visits Gabrielle's husband, Victor