Falling in love
As the series progresses, Yukino is able to open her true self to others and earns her first real friends beyond Soichiro. It is eventually revealed that Soichiro was striving to be perfect in order to avoid turning "bad" like the parents who abandoned him. Falling in love with Yukino, he is able to become more true to himself, but he also finds himself becoming increasingly jealous of Yukino's change bringing new friends and new activities into her life, and of her having parts of her life that don't involve him. When Yukino unknowingly hurts him, he becomes even more jealous and afraid, and begins to wear another façade of the "perfect boyfriend" in an effort to protect her from his "ugly" self.