What If Robb Stark Married Roslin Frey? | Part 2 | Game of Thrones

We go through how the events of Game of Thrones would change if Robb Stark would have married Roslin Frey instead. What would Robb Stark's next move be after meeting Jon Snow back at the Wall? How badly would Catelyn Stark ruin plans in the future? Will Robb bend the knee to Stannis? What is Littlefinger's plan now?