Hello, my dog is two years old. She was a rescue abandoned outside, and was a little high strung throughout her puphood. We recently moved into a new place, and before we lived with a lot of people and now it is just her and I. Since moving into our new place, she has started forming aggressive behaviors. Before she was skittish but still relatively friendly, but now no one can be near her. I even had a friend from before we moved that she knew over and she acted normal initially, and then later in the night they were snuggled up on the couch and my dog flipped on her - snarling and barking and tried to bite her. They were just sitting there, nothing out of the normal. I am at a loss of what to do, thank you.