I have read quite a lot about the Duke of Windsor. He had a dreadful childhood and once an adult only had relationships with married women. Yes, he was sympathetic to the Nazis, but so were a lot of aristocrats at the time. Wallis thought she was in for a short term affair but to her horror was obliged to marry the Duke. He was besotted but she probably had a series of affairs throughout their marriage. It was a good thing he did abdicate. Who knows how the war would have gone with him as King. It is interesting that he barely returned to England after his abdication. The odd funeral and rare visits to see his mother, Queen Mary.