I'm going with a different take: The dog was defending her honor and did not want a tramp for an owner. Good dog!
Now this will likely stimulate disagreement but I don't think it is sanitary to bring poop-smelling and everything-licking dogs into a human bed. But even if that was ok, this is a 6 year-old dog that she knew next to nothing about which had already bitten a human within the first week.
And what is with her hair? Did the dog cut her hair and then euthanize himself just to avoid having to look at her?