It is widely considered one of the most harrowing and best-written episodes of all time. " Twice In a Lifetime " (The Orville)
The Starks arrive at the Twins for the wedding of Edmure Tully and Roslin Frey. The event ends in a brutal betrayal where Robb Stark, his pregnant wife Talisa, and his mother Catelyn are murdered by the Freys and Boltons.
In this episode, Carrie finally breaks up with Aiden after he violates her boundaries.