Interesting idea that maybe she wanted to train to feel like she belonged more with the other Amazons. Diana really is quite separate from the Amazons, isn't she? This movie really highlighted that. Her demigod powers separate her, as well as her youth (relatively-speaking.) It would be nice to see her have closer friendships with other Amazons. Though, as discussed around here, the movie doesn't focus much on the Amazons' lives outside their warrior training. It would be good to see her with closer female friends in the outside world too. WW, Superman, Batman... they all do tend to have a solitary nature. It kind of goes with being a superhero, I guess.