Pygmalion's vanity as the creator drive the events of the plot is discussed below in detail.
Explanation:
Shaw's performance "Pygmalion" was motivated straight by Ovid's fable of Pygmalion. Ovid's variant involves a modeler titled Pygmalion who is determined to sculpt a woman out of whalebone. This figure of his own production was so wonderful and so alluring that it motivated Pygmalion to fall genuinely in love.
"I am not—for reasons you will soon discover—the same Charlotte Doyle." suggests that the character has changed in a way to where they aren't the same.