what does this mean “it's got nothing to do with that”？ Mrs Forbes didn’t speak. Instead, she shuffled her sandals on the herringbone floor, and twisted a teacup around in its saucer. Her face had worried itself into a pinch. Mr Forbes studied her, as he disappeared his cherry Bakewell. ‘Stop whittling about it, Dorothy. It’s got nothing to do with that.’ ‘It’s got everything to do with that,’ she said, ‘I just know it.’ it's got nothing to do with what？