A current side view would help though. Often you can see a puffy cushion saddle forming by now that would be tell tale.
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Looking at this pic I doubt her being a roo. Nothing says rooster to me.
Ok yep. I'm rescinding the pullet thought. No cushion and big legs/feet. That's a slow to mature boy. And the personality you describe says boy too. Gonna be a good looking bird either way!