If you were in a fresh relationship and were hit, would you break up or forgive the person?

As I write this, a woman is getting domestically abused for the first time in a relationship, the man in anger hits her or says something vicious. After showing this side of himself, he will apologize, maybe even cry and say, "I promise it won't happen again." He makes excuses: he had a bad day at work, etc. What percentage of women believe these crocodile tears and give them another chance. I think at least 95% of women stay.