Man, how fucking stupid can you be Duke? You fucking just saw the sword trying to talk to her. FUCKING GO AFTER HER, HAND HER THE SWORD AND SEE WHAT THE F HAPPENS. What is the god damn point of dragging this shit out. Also, it's obviously not you that is the father since you have never been with a woman, so stop trying to figure that out. You are already suspecting your dad, so keep on that track instead of pointing out, over and over and over again that she cannot be your child.
Some times these authors do themselves no f favour with their writing.