I don’t know what to call my husband now that he’s moved out. We’re living in marital purgatory, separated but without a legal separation agreement. I haven’t filed for divorce or been served with divorce papers. He’s legally still my husband, but that’s a technicality. He’s not yet my ex-husband. I choose not to use his real name here, for so very many reasons. I’ve settled on estranged spouse or ES for short.