So yeah, Ysolda has been my wife in skyrim on this character for over 30 levels, she has been sitting in my house in Windhelm, Hjerim for a very long time with my housecarl.

I did the vampire quest, I shot her with the spell & then I bit her neck and she said "Im gona go lay down".. and all that, so I decided to leave my house as she was walking up the stairs to get to the bedroom.

Well, now that I finished the entire Dawngaurd storyline, I built myself a new house with the Hearthfire DLC, so i returned to Hjerim, and she wasent anywhere in the house, so I slept like 12 hours, She still wasent there, so i went to her house back in Whiterun, she wasent there either. And then i went to the bannered mare, she wasent there. Then i returned home, and she still was nowhere to be found.

So.. idk what to do now lol.


Btw both DLC's where played on the latest patch for Xbox360 as of 10/26/12, the character was started before 1.7, i think i started this char in 1.4, cant be sure though.

Edit:
So she finally showed up after like a weeks worth of ingame time, I'm guessing now that she walked all the way from windhelm to my house, very slowly, and her dialog seems to be working perfectly fine, though i have not tested moving.

All i found was this i do not know if it will help or not

If you marry her and move to a house outside Whiterun before starting the quest Battle for Whiterun, she will still appear in the streets running to Dragonsreach.

I did marry her before, never experienced this bug, but I found her, she proactively traveled to my new house over the course of the week, That seem's wrong to me, but she hasent tried doing anything else since.
(Talking about Hearthfire when i say my house)