Positive relationships include “Amorous,” “Respectful,” or “Inseparable,” and contribute buffs, combat assists, and surprise heals, again mostly at the behest of RNG.
When it maxes out, positive or negative, it forms a bond between the two heroes in question. Combat actions, overt choices, and the ever-present RNG contribute to a relationship meter between each member of your party. Stress builds on stress snowballing into greater catastrophe, with one of the most important consequences being your party’s group dynamic. When it rains in Darkest Dungeon 2, it pours.