They were excellent at breaking promises and better at repairing small injuries. A slammed door would be followed by a carefully placed playlist and a shared pack of gum; a betrayal would be followed by an elaborate silence that taught them how to listen. They learned the geometry of each other's faults: where to step so the floorboards wouldn’t creak, where the light made every freckle look like constellations they could navigate by. They made bargains with themselves and each other—no wars, only skirmishes; no ultimatums, only trade-offs.