I used the console commands to marry Hroki and purchased the Lakeview Manor. As soon as I had her move to the house I was given the quest of rescuing her from Bandit kidnappers. Ever since I have completed that quest and everything is back to normal, she walks backwards more then %50 of the time and she does not seem to interact with the environment properly. I first started noticing her backwards walking when I released her from the cage in the middle of the quest to rescue her from the Bandit kidnappers. But like I said, they kidnapped her as soon as I asked her to move to the house with me so I was not able to tell if she was interacting with environment properly before the quest started at the Lakeview Manor. All was normal and no backward walking when we were living in Markarth.