Yes, you don't understand women. You understand people.
[No, I'm not implying that women aren't people; I'm implying that you don't really differentiate between women and men (and other sexual persuasions) when you're trying to understand people. You only do that (the differentiation thing, not the understanding thing) when you're looking for potential partners. ;)
Now gimme yer cookies!
Although really, at first I thought this was a love advice thread. Anyway, if this thread was sort of meant to be that, my advice would be this: if a woman breaks up with or rejects you, you do not ever respond by faulting her ovaries. Do that, and you'll get a kick in the balls (unless you're courting someone who isn't really educated in certain third world countries, in which case nothing will probably happen to you, but you'll still deserve that kick in the balls, which you'll probably get in the glorious afterlife).
Oh, and this: the key to sustaining a healthy relatonship....is treating the other person as how you treat a regular stranger: with as much courtesy and bashfulness as you can, while ever-trying to understand him or her]