Could be any number of things. I would start by checking the windows event log at around the time of restart and see if it wrote anything there. It should also let you know if it's restarting cleanly or just crashing. Or if it's shutting down from overheating maybe. That should hopefully point to a next step.
Why do you think being pregnant has anything to do with who pursues who?
You described an alternate scenario, but I still can't seem to connect the dots. What does pregnancy have to do with pursuit? What does frequency of insemination have to do with pursuit? Why isn't society structured in such a way that women are in charge and use men as semen providers and nothing else? That would also be a completely viable societal structure that fits within the biology. So why not that?
Women being able to get pregnant does not in any way lead to men pursuing.
If two adults agree to split a bill, gee that's nice. It's also irrelevant. The topic here was "it's unfair that men pay", and my point is "it's not unfair. MEN don't pay. Inviters pay. And that's fair."
Eh.. I think we deserve someone more internally damaging and less externally damaging.