About a 3 or so months ago, we started noticing a decline in Bella's sweetness and maturity around other dogs - and even some people.
Both off leash and on leash she has become very disturbed by any dog's presence and growls and barks in a threatening manor. We are new to this kind of behavior. She's never been this way before, and was always very social and even a bit submissive at times toward others. But now she stands assertive and bold, almost as a challenge to dogs who clearly aren't looking for trouble.
Bella has been the target of big aggressive dogs in the past, and even some smaller ones. Could she simply be afraid of being "bullied" and be standing up for herself? Or is this just just Napoleon complex?
We recently had an incident where she was off leash in the front yard, and literally ran into the street to get to a german shepard puppy who was innocently passing by. She got right up into the dog's face snarling and barking with her posture dominant. What is this? She's even mean to her old friends in the neighborhood - ones that would never hurt a fly let alone her.
Could this be a faze? We want Bella to feel comfortable and not stressed or threatened, and peace for the dogs in the neighborhood which now all fear her. Nobody wants their dog to be the titled "the mean little yappy dog down the road", now do they?
Can anyone help? We want the old Bella the way she was before. She can't go on forever being antisocial, I'm just looking for some suggestions.