Board Thread:TV Show Discussion/@comment-79.116.32.60-20160920154405

1. Sansa is Catelyn's daughter, basically her mirror image, and I don't think Littlefinger will ever let her die.

2. Sansa is not the same whiny girl she used to be. Littlefinger noticed her change in personality when she slapped Robin Arryn. Sansa from the first season would've never done that.

3. He married her off to Ramsay Bolton, knowing exactly what kind of a beast he is. It was his test for her to see how she survives it.

4. Baelish wants to marry Sansa, not only because as he had said 'she's far more beautiful than her mother ever was' ; not only because she's Cat's blood, and not only because it will be like he married Cat. Baelish wants to have her as his Queen because Sansa is finally the wolf everyone wanted her to be. Imagine what she can do with an army. She saved Jon in the last minute, also taking Ramsay by complete surprise. Two targets in one shot.

So, Littlefinger knew all along that Sansa will take the North back somehow. He had seen the change when everyone else failed to. He just wanted to test her to be sure she's worthy enough to sit with him on the Iron Throne. 