Same-sex cohabitants report significantly more intimate partner violence than do opposite-sex cohabitants. Among women, 39.2% of the same-sex cohabitants and 21.7 of the opposite- sex cohabitants reported being raped, physically assaulted, and/or stalked by a marital/cohabiting partner at some time in their lifetime.
Patricia Tjaden & Nancy Thoennes, U.S. Dep't of Just., NCJ 181867, Extent, Nature, and Consequences of Intimate Partner Violence: Findings from the National Violence Against Women Survey, at 30 (2000), available at http://www.ojp.usdoj.gov/nij/pubs-sum/181867.htm
I suspect that’s a reporting difference, not an occurrence difference. Very few lesbians would choose not to report such an incident, whereas a lot of wives and live-in girlfriends of male partners accept domestic violence and let it continue as regular feature of the relationship. Most lesbians are steeped in feminist philosophy, which is very heavy on the unacceptability of domestic violence or any violence. Also, a lesbian is less likely to be financially dependent on her partner, or to have children that she can’t afford to support alone. Many heterosexual women allow domestic violence against them to continue because they don’t know how they would support themselves or their children alone (and their violent partners often encourage this line of thinking).
BTW, I can’t figure out what on earth “stalked by a marital/cohabiting partner” means. How can you be stalked by somebody you’re living with?