A then-Prince Charles was reportedly “longing to be hugged” as a toddler, but one problem got in the way — his mother just happened to be the Queen of the United Kingdom and Commonwealth. Despite showering affection on her firstborn child and heir before her father died in early 1952, Queen Elizabeth II put those motherly instincts on the “back burner” upon her accession. This insight and much more are revealed in royal author Ingrid Seward’s new book, My Mother and I, which explores Charles and Elizabeth’s decades-long son-mother dynamic. Elizabeth II came to the British Crown at the age of 2…