My female dog is overly aggressive with my male dog. Many times, she will mount him and proceed to make mating motions that are typically seen in males. Given the chance, she will always make him wait to eat, take his play things, and make him move from the spot where he sleeps. It has become such a problem that he will not even eat unless she has been kenneled out of his sight.
We have worked hard to train her, but to no avail. We have also tried to encourage him to be less submissive. We've read books and received training tips, but she refuses to become less aggressive. I've had other dogs before who have been difficult, but I've always been able to overcome their behavioral problems by doing my best to reinforce good behavior and become responsive to their needs. What can I do?