They look similar and both said they felt immediately comfortable. She said to call her Aunt, so maybe she really is her aunt. Hattiert
Buy isn't Queen Yuns country secretly instigating the invasion at the borders that the emperor is now fighting at. If there is a Familia connection between them its gonna be complicated from the start.
I hope the little guy just got bored and took off. And why is her birthmark the same as Queen Yuns is on her forehead.