He is not aware of bonds he already created, not only he loves his daughters he is also in deep (inside) love with dragon mommy. Also her body is inresistible so there is no escape brother.
His revenge gonna be like those meme stories of the guy who pranks his bro saying he is gay, marries him, adopt a child and live together for 50 years just to tell it's a joke.
Oh, you can't foresee how malevolent and twisted he will be with his revenge. Not to mention the side effects of the curse knocking Rossweisse unconscious for such a long period of time, which have already been spoiled in the comments for the previous chapters.