Sorry..But I don't think she wanted to be a boy. She was a sweet girl ,very happy to be a girl. She wanted so strongly to become a mother and dwas so feminine! No; she was suffering rather of what it's called: "The middle sibling syndrome". She was not the eldest of the girls, like Olga or Tatiana, nor the little one, like Anastasia. She was the daughter always aside , who believed no one loved her (of course it was not true, but middle children uses to believe it..any psychology book will said it), not even her parents. Maybe this was the cause for her extremely good behavior: she wanted to be accepted and loved and will do anything that was at hand to be noticed, poor angel.
RealAnastasia.