He's a boring normal dude, who probably wanted a normal boring wife and a normal boring family. No way he'd have any of that with someone this intense.
That description reminds me another manga where a girl (it later devolved into harem, bleh) lets a guy do whatever he wants, but insists they're not in a relationship, like they never go on dates because 'they're just childhood friends'.
Running out of ideas and/or motivation? There's a bunch of very interesting characters in this, but the story was bland, never really went anywhere, and just deflated at the end.
It's obviously a vague parody that isn't meant to resemble much of anything. It does expose the level of...
Manga artists are obviously inspired by pulp fantasy aesthetic, like Frank Frazetta's art, and other products of pop culture more than anything historical. It's supposed to look heroic, flamboyant, cool and sexy. It has about as much to do with genuine medieval European armor designs as Dungeons...