What does /r/mensrights think of learning martial arts to deter women who get physically violent?

I bring this up after an incident at a bar with a female who is known for starting things and getting physically violent, especially when drunk. While there, I make an offhand comment (I honestly barely remember what the specifics were but it the gist was "get over yourself").

Anyway, she takes a swing at me. I'm not a martial arts expert by any means but I've been learning off-and-on since I was 10 years old.

I was sitting far enough from the bar to swerve out of my seat. She followed and tried to throw another punch, which I deflected. I slid around her and wrapped both arms tight, letting her know I could crush the life out of her if I wanted to by squeezing about half-strength. She got the message and stopped struggling VERY quickly.

I told the bartender and everyone present to chill, not gonna hurt her, she's just pissed/drunk, etc. She asks me to let her go and I tell her, "Are you going to be cool and not start shit again?" She agrees and I let her go. She chills for a minute but tries again when she thinks I'm not looking.

This time I just spin her around and give her a very gentle shove forward. Before she can turn, I grab an arm and start twisting at her wrist, just enough for her to know I could break it. She literally drops to her knees and I let her go.

Finally she stops, looks like she's about to cry while clutching her wrist (I didn't break it) and just leaves.

What I'm thinking of would be a more defensive style (aikido, Judo, jujitsu) that can give the practitioner the ability to defuse a violent person without actually hurting them, as was the case above.

What say you all?

EDIT: Krav Maga isn't all that defensive. My bad.