I've fought MMA for several years, I occasionally train and fight with women fighters. In fact all of us guys and girls occasionally train together, it's very common. Talking to some of those girls, if they were to hit their boyfriend/husband and he didn't fight back and instead did the "gentlemanly thing" they would probably leave him. Their words not mine. This isn't the 1930's, things are different now and a lot of women out there are vicious. Guys who don't fight back when a woman starts attacking hardcore these days get their asses beat.
Lol in fact I just talked to a girl while I was typing this who does graphic design for me. And she said if she were to beat up on her BF and he just took it like a "gentleman" she wouldn't want to be with someone who was such a kitty. Things are different nowadays. I'm not saying it's okay to hit women, it's not. BUT if a woman is kicking your ass...