Maybe her husband the "sooper-sekrit navigator" can shed a little light on this, along with explaining why he ever married this dimwit.
A couple of reasons for his unfortunate decision have been documented.
Most obvious are the natural urges that might consume a young man after three months locked inside a metal tube with a hundred other young men and no young women.
While nadin may be a grotesque blob to us, to a young man in those dire straits she might seem a port preferable to a bluebird house, the neck of a ketchup bottle, or a warm apple pie.
Beer goggles provide 20/20 vision compared to the effects of a ninety-day submerged patrol.
In addition, this particular young man was suffering the effects of an extended period oxygen deprivation, due to a malfunctioning O2 sensor on board the submerged submarine.
In short, he was severely addled, and by all indications remains in that sad condition to this day.
The result? Years after that fateful patrol he's still following the crazy bald dwarf, lugging The Good Rig.