 The same year, she started seeing Martin Heidegger again, and had what the American writer Adam Kirsch called a "quasi-romance", lasting for two years, with the man who had previously been her mentor, teacher, and lover.During this time, Arendt defended him against critics who noted his enthusiastic membership in the Nazi Party.She portrayed Heidegger as a naïve man swept up by forces beyond his control, and pointed out that Heidegger's philosophy had nothing to do with National Socialism.