From the Canadian National Post a concise statement of the state of affairs:
The awkward truth about spousal abuse
One of first-wave feminism’s great achievements in the 1970s was to end the denial surrounding wife abuse in even the “best” homes. Resources for abused women proliferated. Traditional social, judicial and political attitudes toward violence against women were cleansed and reconstructed along feminist-designed lines.
But then a funny thing happened. The closet from which abuse victims were emerging had, everyone assumed, been filled with women. But honest researchers were surprised by the results of their own objective inquiries. They were all finding, independently, that intimate partner violence (IPV) is mostly bidirectional.