There are some exceptions to these rules.Depends on the level of testosterone in the woman. Usually peaks near ovulation. Body knows an egg is ready and hormones make her want to fertilize it. Men on the other hand, supposedly have 16x times higher levels. This makes us horny at any given moment. I’d say women in relationships are more free to succumb to those urges since there is no social stigma associated with it. That stigma is less these days as we see young women racking up body counts. They probably seem more horny these days because this old social judgement has been removed.
As an experiment, observe the women in your social circle. You’ll start to notice the hormone changes. During ovulation you might notice more skin being shown or sexually suggestive speech. More provocative outfits and stronger flirting.
That’s a good reason ”timing” gets brought up in many conversations. Timing, as in she was ovulating and the elevated testosterone was making her crave some d!ck.
I'm a man who isn't even 35, yet I often am too exhausted for sex (even too exhausted for sex with myself)
I had a constantly flirtatious (and constantly skin-showing) 60 year old female coworker at one point. Ovulation certainly wasn't why she acted like that (hehehe)