Hormones! Perhaps our biggest hurdle.
I've talked in the past about my relationship with my live-in GF, and how I find the goal of sustaining an ongoing long-term relationship far more challenging than just the act of picking up women and getting laid, and certainly more so than running game in order to maximize fun with SBs. It really is one of the more difficult things I've ever done.
If you don't live with SB, it's not as important to pay attention to cyclical hormone stages (in fact you may not even really be able to if you see her a couple of times a month, because she may or may not even be honest with you about when her period is or whatever), but if you do know where in the cycle she is, it can sometimes work to your advantage. I try to occasionally re-educate myself on the matter, because I find the whole "female cycle" thing to be difficult to remember (or perhaps one of those things I'd like to forget).
But the two links below serve a greater purpose than predicting SB behavior. Notice how the female blogger describes the female hormone cycle in a way that reads kind of like an informative public health message, but when she gets to the male testosterone cycle, she starts feeing her readers tips on how to manipulate men, when best to get what they want from him, etc. Yet, feminism or misandry in general has nothing to do with her overall agenda. I think this alone tells you as much about the female mind as the information itself.
Also notice how it's dead simple to time the cycle for getting what you want from males (only have to know the time of day), and incredibly complicated for getting same results from females (cycle spans a month and varies from girl to girl, etc). This means it is much easier for them to use our hormones to their benefit than it is for us to do same to them. In fact, I don't even read this kind of stuff in order to use it as a weapon against them, it's more like a defense mechanism when you deal with the same female on a daily basis. Disaster avoidance strategy. LOL.
[URL]http://hormonehoroscope.com/the-female-hormone-cycle/[/URL]
[URL]http://hormonehoroscope.com/the-male-hormone-cycle/[/URL]
I'm not sure if there's a way to track the cycle of SBs we only see occasionally (at least not for me because my encounters with them are fleeting), but sometimes its possible to make educated guesses about where they are based on their behavior and act accordingly. And yes, if you're paying her an allowance, that will often win out over whatever her hormones are telling her to do. But using her hormones to your advantage, like negotiating on things when she is most agreeable, can pay off in certain ways like lower allowance or better sex.