She is to be the bridge of peace between the Starks and the Lannisters, but aren't bridges always the first thing to be burned during a conflict? [Jaime Lannister x OC]

An alternate version of George R.R. Martin's 'Game of Thrones', based on the books, asking what would happen if Ned Stark had lived. The story picks up soon after Ned Stark's arrest and Sansa pleading for his life. Arya is still on the loose, Tyrion has escaped from the Vale, and Stannis and Renly Baratheon are making plans to take the Iron Throne. Robb Stark is moving to the Riverlands and Tywin Lannister and his son Jaime are planning to meet his army. Yoren is in King's Landing, recruiting for the Night's Watch. Each chapter will be from one of the character' viewpoints, much like in the books. How many chapters, that I don't know yet. Of course, Mr. Martin is the owner of all and I humbly walk in his footsteps.