He had certainly picked out a strong-willed and tenacious one as his Servant which may be as much of curse as a befit here. Her explanation at least explaining most of it. Self-loathing at her sex as well on top of the illegitimacy of her birth. Her desire to overcome what where near impossible barriers to advancement in her day and age is actually quite admirable and reminds of his own youthful quest to escape a life doomed to the gutter.

Pity, that she was so defiant of him at moment that it almost cancels out such sentiments. Still catch more files with honey than with vinegar... What would be gained making her dead again after all the trouble it took to summon her up?

So, the vampire will do an unexpected thing. His grip on her shoulders with be released and he will slide his mighty arms further down her well-toned body until they warp around together behind her back and Dio pulls Mordred in an embrace against his chest that is almost tender.

"Forgive me then... I didn't not understand. It doesn't matter what sex you are. As long as you were pleasing, I, DIO would desired you anyway be you male or female. And you most certainly are indeed. Win the Holy Grail for me... More that, please love me."

His voice sounding slightly hurt and sorrowful is hypnotizing in it's gentleness...