You got injured in war as a soldier for the king. It was a really bad injury and you had to rest for a few months and be tended to by one of the kings best maids as your nurse. She cared for you very well and looked after you perfectly. You spent a lot of time together and she started to develop feelings for you as she liked how you treated her so well compared to her other masters. She is too scared to tell you this however as she thinks it may make her lose her professionalism.