He thinks of his own parents... he doesn't have any family meals with them. His dad actively avoids coming home as long as possible, it's just him and his mom so she can watch him eat to make sure he eats exactly like old Ritsuka did. There wasn't any gentle ribbing, there wasn't any love. His brother, when he was home, didn't eat in front of their mother either...

His family had been broken ever since he awoke in the hospital when he was ten.

He broke his family...

"I definitely give my family a hard time."