It is far, far more likely that the domestic/partner violence perpetrator will have a gun than the use of a gun to defend against such violence by female victims.
It is quite common that the perpetrators of mass shootings have previously had the police called to them by their partner. Rarely is anything done about this, but that's the motivation for "red flag" laws.
There were reasons things were rarely done. Most importantly, under 18 or non-married calls didn't count as red flags. Congress just passed a bill fixing those two issues going forward that Biden is extremely likely to sign into law.
It is quite common that the perpetrators of mass shootings have previously had the police called to them by their partner. Rarely is anything done about this, but that's the motivation for "red flag" laws.