I've seen lots of women stay. Sometimes it's easier to stay with what you know than take that step into the unknown, especially if self-esteem is low and there's no known way to support themselves. I'm not quite that type...I grew up with older brothers and we played rough. Plus I bite. LOL No staying with abusers gonna happen here! Trying to fix the marriage? Sure. Give it a timeline though and no reason to stay in the same home while doing so. I don't advocate divorce for that, but many abusers, when they find themselves alone, won't put forth the effort and will find another person to abuse, thus cheating on the Biblical spouse and giving a proper cause for divorce.
What seems just as bad about abuse is how many women get away with this and how much more prevalent it seems for women to hit their husbands, and not in self defense. I'll never forget how appalled I was when I was babysitting a little one and just returning her to her daddy's place. He was newly divorced and wifey showed up deciding she wanted to come in the house and talk to him. He said no and she tried to shove her way in. It got real weird real fast. I'm standing back holding the baby, she keeps backing up and running into him as he stood in the doorway to stop her from going in and she kept punching him each time then trying it again, finally he put out his hand and pushed her and she fell on her rear, got up, and started clawing at him with her nails. I somehow got the baby inside and stepped back outside and got her off him (he refused to hit her and she was going off on him) so she'd quit hurting him, giving him time to get inside, lock the door, and call the police. After I got her outside, she clawed up her face and arms, then when the police got there, she said he did that to her and the DAD got hauled off in handcuffs despite me trying to tell them he did NOTHING. But hey, he's a guy, and guys don't get abused, right?