Responses
It looks to me like he was aiming for the affection of Nora's parents (because he wasn't getting that from the king or his deceased mom)--He's a self-centered asshole, but his twisted personality is natural given how unhealthy his situation is (with his parents, and having an unhealthy power balance with those around him as the crown prince from such a young age)
Like the prince....seems he purposely ruined Nora's life...