Heck I don’t know who, it’s been years. But it was pointed out that unless the law forces them to do otherwise, the cops respond to domestic violence according to what category the people involved are, not according to who is guilty of what.
Man & woman of the same race: Arrest the man.
Interracial couple or homosexual male couple: Ignore the situation until it escalates to murder.
Lesbian couple: Arrest the bigger woman.