"Diana was a young lady who loved the glitz and glamour of being part of the house of Hanover, without the responsability."
I don't know about that. The Spencer family are pretty darn close to royalty themselves. Diana's father was the Eighth Earl of Spencer and her brother, Charles, is the Ninth. Spencers were and continue to be major landowners in Britain and their family seat (Althorp) contains the second most rare and expensive art collections in the kingdom. The Spencer children were childhood friends of Elizabeth II's progeny. Prince Charles dated Diana's older sister when Diana was a young girl. My point is that the Spencers have their own money which is quite substantial. I rather believe that she loved Charles. The trappings of royalty was something that was not too removed from her own life from birth.
Aside: the Spencers are more English than are the Windsors!
Princess Diana's family is a branch of the Spencer-Churchills (yes, Sir Winston's family), of which the Duke of Marlborough is the head. It's an accident of family history that her branch is named Spencer only; they have as good a right to the Churchill name as the senior line.