This is the National Intimate Partner and Sexual Violence Survey. It does a great job of breaking things down regarding sex of victims, sex of perpetrators, type of violence, etc.
NISVS Report 2010
Quick note: 98% of female rape victims and 93% of male rape victims reported only male perpetrators.
This study looks at the "Differences in Frequency of Violence and Reported Injury Between Relationships With Reciprocal and Nonreciprocal Intimate Partner Violence"
Intimate Partner Violence
Quick note: Women were the perpetrator in relationships where only one partner was violent (nonreciprocal) about 70% of the time, HOWEVER, men were more likely to actually inflict injury.