So i got curious about this, and before i could talk to alvor in the beggining, i kileld a chicken, he charged at me and i burned him to death, while Advar helped me kill the rest of the village off ._. and now the main quest is broken, a thing i tought impossible at first, i went to talk to his wife and she made a remark on how she wishes i would die in the wilds, after that she made a remark on how much she missed him ( even tough she didn't even see him die) and then started to treat me normally... same thing with his daughter.The only time Advar turned on me was when i killed Alvor's wife while he was inside the house, the daughter won't give a give a [censored] tough, she dosn't even mention anything about felling lonely etc.
I felt pretty bad after doing that... but it's a sacrifice, FOR SCIENCE!