Agent_Z said:
There's plenty of cases of male superheroes dating normal women and plenty of cases of female superheroes dating male superheroes. But rarely do writers show female supers dating normal men.
At the risk of sounding misanthropic, I believe this is because a disproportionate number of the writers and audience of comic books are men looking for escapist fantasies of power, and one of the powers they insist on having is power over women. They believe, consciously or not, that a woman who's more powerful than her boyfriend is an affront to the order of the world, and retreat into a world where they can feel safe knowing the woman they want to fuck may have superpowers, but her boyfriend can still totally beat her up.
And here's my usual disclaimer about how if you're reading this, you should note I didn't say your name, and that's because I have no idea if you're the kind of person I'm describing, so should you be feeling any defensive outrage at this point, please keep it to yourself. Thank you.