It’s double or nothing for Nikki Acton. While many New Yorker couples struggled with an excess of intimacy with their partners during the pandemic lockdown, Acton — a 36-year-old who works in finance just like her husband, Andrew Kobierski, 37 — told The Post that her spacious duplex apartment preserved her relationship. “The two of us were together 24/7 but could still get space from each other because of the floor plan,” Acton said of her two-level apartment on Cornelia Street in the West Village. “Otherwise, I am convinced that we would both have felt suffocated.”