I find it weird that people keep saying things like "I guess this is wrapping up", this series ended at chapter 41 months ago back when the translation was still around ch30 or 31. I mean, it says vol 0/5 Chapter 39/41 right above the follow button.
Because he isn't putting up a fight, I'm assuming. All the other families and suitors did, and this guy insulted his own family and the Oni princess, all in a single sentence.
The guy insulted both his own family and the princess. He also belittled those who fought for her. The other suitors at least had the courage of confronting MC, including the little kid.