Maybe if he had a history of it, but if it was the first time, she will think it more part of him going off the rails there for a bit, rather than a habit. Not all relationships end because someone hits somebody once. No not condoning violence, but like other bad things people do, its more important if its part of their personality or just triggered by a perfect storm of circumstances that are unlikely to re-occur
All that being said if it wasnt the first time, Currie should never get back with Ben. People who have it in them and make a habit of it, are generally incurable. I know, i had a violent alcoholic mother.