The article makes no sense. If she met Diana in 1991 how could she have met her at the start of her marriage.
Any article the refers to Diana as Princess Diana is to be taken with a grain of salt.
Diana had red blotty, pimply skin through out her adult life. (So whatever her 'beauty secrets', it did not work.)
Diana was a drinker, not on level with her son Harry but she did drink.