You are going to need a set of eyes that can look at this from the out side. We all can toss out Ideas but you need someone to actually see and know what is going on and the body language used by all dogs.
Best thing to do is call in a trainer that understands rescues and aggression and lack of social skills.
JL
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"The truth about an animal is far more beautiful than all the myths woven about it." Konrad Loranz |