Wrong Side of Mars

A man's authority crumbles alongside his marriage, and the setting is extreme isolation rather than a normal household, which is what makes the unraveling feel so airless. This one leans hard into angst and voyeuristic dread instead of playing NTR for cheap thrills.

The premise puts the protagonist somewhere far from Earth, cut off from easy escape, while his wife drifts into another man's orbit. Distance does the damage slowly, and the story sits with his helplessness rather than rushing past it.

You move through the fallout as the husband, reading dialogue-heavy chapters that track his slipping grip on the situation rather than handing him control. The game builds toward its first scene with the wife gradually, so the tension has time to actually sink in before anything happens.