I'm not quite sure if I understand how you are trying to link them. But I'd say a general no to your hypothesis. I'd also personally disagree that women are more at risk during sex, it's pretty equal. Especially since anal is not normal. Maybe in porno and even on the tfp but not in the general population.
For instance, one thing you didnt take into account is that occationally men have to be much more careful with whom they sleep with because of the person(s) that woman might be connected to, for instance does she have brothers that might "protect" her? A father with shotgun marriage on the mind? A jealous lover that might kill me? etc. Women tend to have more "dangerous" baggage than men (or maybe not, point is there are other factors that equal things out).
As for current theories see these links below. Sexual selection should be most relevant. Women are more insecure because they have more to be insecure about. Theyre eggs take more time and resources to produce, and pregnancy as well.
http://en.wikipedia.org/wiki/Sexual_selection
http://en.wikipedia.org/wiki/Evolutionary_psychology