“Separated” is a fraught, transitional term in human relationships, prone to conflicting definitions by partners who have long been inclined towards conflict: a prelude to a permanent end for one, a conciliatory pause for the other. In Icelandic director Hlynur Pálmason’s striking, emotionally febrile marital drama ”The Love That Remains,” artist Anna (Saga Gardarsdottir) is […]