In 1954, her close relationship with Nathaniel Branden turned into a romantic affair, with the knowledge of their spouses.
ɪn nˈaɪntiːnhˈʌndɹɪd fˈɪfti fˈoːɹ, hɜː klˈoʊs ɹᵻlˈeɪʃənʃˌɪp wɪð nɐθˈænjəl bɹˈændən tˈɜːnd ˌɪntʊ ɐ ɹoʊmˈæntɪk ɐfˈɛɹ, wɪððə nˈɑːlɪdʒ ʌv ðɛɹ spˈaʊsᵻz.