We all know that after we complete a friendship campaign we can no longer access it. (Which is fair as we have no use for them after they are complete.) What i am proprosing is that after a chapter or whole campaign is done then we can go back to that chapter and look at what was said between the characters! For example in the image below you could press on the chapter 3 and revisit what Frozone and Yax did in that chapter.
So it would take us back to this screen where we could press on battle 1 or 2 to see why they had to battle
So in this case lets say i have completed Yax and Frozone chapter 4 and wanted to revisit what happened in chapter 4. So i load up the time line for the campaign ( first image) press on chapter 4 and come back to this screen
I would then be able to press on the 1-5 to see what happened in each mission. This would be better then pressing on a campaign number and seeing the below screen which is just boring
So in summary I think it would be a good idea after a friendship campaign is complete to revisit what happened in the camaign. As for me i cannot remember what happend in the first campaign that many people would have done with Ralph and Vanellope.