Let her talk. Don't intervene. Inherently, women keep pushing for more and more, and that doesn't go just for getting more from you, but they will also give more of themselves. I don't recommend to do this with a quality woman, but definitely try this out with a chick you don't care much about but you're cool to hang with once in a while.

The point is to build comfort around you, such comfort so she feels comfortable enough to say basically anything. Eventually she will start running her mouth and saying a bit more than she would like to if you would have the self-respect to shut her the fuck up and asking her what the hell is wrong with her.

Eventually, stuff like "I never cheated, I never ever could" to "My BF wasn't there and it was christmas, so it doesn't count", or that they see men as pets they keep at home rather than actual people. To each their own joke, but a man implying the same would make a woman rage her womb out.

It's good material to learn on what the women say when you don't give them the idea that they would get a backlash from you and how far they are willing to take their bullshit. Eventually you WILL get to the point where you are "too nice" and things won't work out, and they rather expect you to be friends with them (which is all okay since you didn't care anyway).

Eventually you will come to the conclusion that women live in the moment, and what they say in that moment might sound completely right, but later in the day, their hindsight will tell them that what they believed was right to say, was actually pretty shitty and wish that you would have called them out on their bullshit. Instead, you just accepted that bullshit from her, which she doesn't like or respect, and ultimately places you in the "nice guy/friendzone" and calls the relationship quits because you are "too nice", which is true.

Men are logical, what we say now is the truth and remains unchanged, while women are emotional beings and things they do and say are colored by feelings. They need a man to be called on their bullshit, which they at hindsight will appreciate.

Have principles, self-respect, and ultimately a strong frame. Call her out on her bullshit straight away. She will hate you that moment but will love you the next. Never be afraid to lose a woman, and never lose self-respect or any of your principles to keep a woman either. It's pointless, goes nowhere, and you are much better off pissing her off and losing her for standing by your own believes and making place for one that does respect it the same way you do. Ultimately, many of the shittests will come from ALL women, and noone wants to be with a man without a backbone.