I agree, in Mrs Simpson he showed his true colours and the throne was much better off without him as it turned out. Duty before everything else is not something Edward VIII was comfortable with.
Perhaps he saw himself as the direct opposite of his mother, and eventually rebelled? One imagines his influences were mostly from his mother in his formative years, as his father appeared more distant to him. No doubt he had seen and heard how much she had given of herself to Crown and Country, first to Eddie then Georgie. Clearly his heart was more important to him than the good of Britain.
His comment about his mother having "iced water running through her veins" rather than the passion that identifies with warm blood and with which he seemed more comfortable, is perhaps the key. Additionally, it would have been clear within informed circles that by late 1935 his duty to the nation would have to intensify, as the storm clouds gathered apropos Germany, therefore his exit visa was guaranteed by his 'love' of Wallis.
There can be no doubt however that when George VI and Queen Elizabeth stood forward to be counted, Britain was saved from the effects of fascism. Today we can see their daughter as our Queen, demonstrating how duty is all important in the role of constitutional monarch within the United Kingdom. One can only conclude that the abdication was a blessing in disguise, saving us from a King who has decided self gratification was the order of the day and who lacked backbone.
R.I.