AITA for canceling my wedding after my fiancée came home wearing another man's jacket?

My fiancée vanished hours before our wedding planning dinner, leaving me alone with both families and an empty chair. She came home at dawn in another man’s jacket and said, “Being engaged doesn’t mean being owned.” I just nodded. By Sunday, the wedding was canceled, the deposits were frozen, and the group chat had every receipt. ---------------🐋Whale Tales🐋--------------- #reddit #stories #redditstories