There’s a midgame best-in-slot helmet whose defence formula applies the player character’s…

prokopetz : Computer RPG where every possible pairing has an official portmanteau so that its current relationship value can easily be referred to in formulas and stat blocks. There's a midgame best-in-slot helmet whose defence formula applies the player character's relationship value with one specific party member as a penalty because that party member thinks it looks silly on you.