" The men in her life were clean-cut, well-bred, reliable, unpretentious and good company. “Diana is an Uptown girl who has never gone in for downtown men,” observes Rory Scott. If they wore a uniform or had been cast aside by Sarah so much the better. She felt rather sorry for Sarah’s rejects and often tried, unsuccessfully, to be asked out by them.
So she did washing for William van Straubenzee, one of Sarah’s old boyfriends, and ironed the shirts of Rory Scott, who had then starred in a television documentary about Trooping the Colour, and Diana regularly stayed for weekends at his parents’ farm near Petworth, West Sussex. She continued caring for his wardrobe during her royal romance, on one occasion delivering a pile of freshly laundered shirts to the back entrance of St. James’s Palace, where Rory was on duty, in order to avoid the press. James Boughey was another military man who took her out to restaurants and the theatre and Diana visited Simon Berry and Adam Russell at their rented house on the Blenheim estate when they were undergraduates at Oxford.
There were lots of boyfriends but none became lovers. The sense of destiny which Diana had felt from an early age shaped, albeit unconsciously, her relationships with the opposite sex. She says: “I knew I had to keep myself tidy for what lay ahead.”
As Carolyn observes: “I’m not a terrible spiritual person but I do believe that she was meant to do what she is doing and she certainly believes that. She was surrounded by this golden aura which stopped men going any further, whether they would have liked to or not, it never happened. She was protected somehow by a perfect light.”
It is a quality noted by her old boyfriends. Rory Scott says roguishly: “She was very sexually attractive and the relationship was not a platonic one as far as I was concerned but it remained that way. She was always a little aloof, you always felt that there was a lot you would never know about her.”
In the summer of 1979 another boyfriend, Adam Russell, completed his language degree at Oxford and decided to spend a year travelling. He left unspoken the fact that he hoped the friendship between himself and Diana could be renewed and developed upon his return. When he arrived home a year later it was too late. A friend told him: “You’ve only got one rival, the Prince of Wales. "

― Andrew Morton , Diana: Her True Story in Her Own Words