Comment Ingrid Bergam est devenue l'actrice fétiche de Rossellini puis sa femme?

Voici la lettre étonnante qu'elle lui a écrite :

Dear Mr. Rossellini, I saw your films "Open City" and "Paisan," and I enjoyed them very much. If you need a Swedish actress who speaks English very well, who has not forgotten her German, who is not very understandable in French, and who in Italian knows only 'ti amo,' I am ready to come and make a film with you. —Ingrid Bergman-