My experience has been that women and men tend to feed each other when it comes to domestic violence but only had first hand observations to support the assertion. "Assortative mating" might explain quite a bit. When it comes to domestic violence, 1/2 is initiated by both parties, 1/4 of the time by men , 1/4 by women.

Domestic Violence: The Gap Between Empirical Evidence and Policies and Practice (1 de 3)http://www.youtube.com/watch?v=1EglxuSgZmY (2 de 3) http://www.youtube.com/watch?v=b3bIXDTr0o8 (3 de 3) http://www.youtube.com/watch?v=sKT9FBghfKg

I didn't think Men's Rights was something that interested me, this lecture changed my mind.