In this case, it seems she was going back over and over ---as the advice for daughters goes --"he hits you once, it's his fault, if he hits you twice, it's your fault". I see this guy accused her of abusing him also ---and she may have ---but then he should have already divorced her for that right after it happened.
It doesn't always work out that way, just usually. A couple of years ago, guy forced his ex girlfriend's car off the road while she was travelling to her parents' house, then shot and killed her.