Revenge of the Sith: Ahsoka's Popularity

"Before Darth Vader was Darth Vader he was Anakin Skywalker. Ahsoka was his Padawan. They were like brother and sister at times, especially when they had a difference of opinion. Ankain was also like a father to her. When they worked together they could accomplish what everyone thought was impossible. He might want their bond for something. Or like all Sith apprentices, Vader is becoming ambitious and looking to overthrow his master. The Emperor has already broken the Rule of Two, so maybe he just wants to start up a Sith version of the Jedi Order. The only way to know for sure is to allow her to be captured. That isn't happening while I am alive."

OOC: I might be remembering the storyline on Mortis wrong. Will check and update when I can.
Update: I removed that stuff.