@Jedendvatri I wouldnt say that, there are many people that dont talk about their past and it is understandable, especially as a commoner-knight who interacts with high ranking nobles, there would be a connection in war on the battlefield etc, but as a commoner she may have avoided talking about her background and stuff, since its something hard to grasp for nobles anyway.
So they can know her as she is, because they fought together and spent much time together, falling in love, while not knowing anything about her background and past at the same time.