embezzling more than a million dollars from the couple. the sisters pled not guilty saying nigella allowed the spending in return for her concealing her alleged drug use from saatchi. >> i like to welcome people with food. >> reporter: their trial is unveiling details about the couple's crumbled relationship. >> been quiet about the issues that have transpired so far including allegations of drug use and domestic abuse against her. at some point she will have to talk. she will have to look the camera in the eyes and people will have to make that decision, do i believe her? >> reporter: in his emotionally charged testimony, saatchi revealed, "i adore nigella now, i adore nigella and am absolute brok broken-hearted to have lost her." saatchi addressed the shocking images that went viral this summer, ending in their divorce. he said he was only trying to get nigella's attention. "i was not gripping, strangling, or throttling her.