so i finished the dragonborn dlc and decided to do random jobs for the vampires at the castle. i remembered seeing a royal vampire armor in the area leading to the soul cairn and decided i wanted it. trek through the castle etc etc kill things etc etc. found the armor and went to the room leading to the soul cairn and left to the balcony. nothing to spectacular there. i fast travel to a site to find a shout that my 'friend' told me about in a letter. when i appear at the location serana is suddenly beside me. i talk to her to dismiss her and she refuses. i warp back to the castle and try again. still nothing. is there any way to get her to stop following me? for the record i never finished the dawnguard dlc. current land mark is find the second scroll.