Board Thread:TV Show Discussion/@comment-98.236.179.108-20160510001548/@comment-25530642-20160610063109

This is just my thought but Sansa might have had it annulled and cause Tyrion was classed as a traitor and their marriage never being consummate she was given the annulment

Littlefinger said in 5x03 "Tyrion never consummated the marriage by the law of the land she is no mans wife"