“The only decent thing about the boy’s childhood was the close relationship he had with his older brother. His older brother always took care of him and because he was 5 years older, he was very dependable. The fact that his brother was there also lessened the burden for him since his brother was their father’s heir who would one day take over and lead the family business,” Edward continued his story.
He must be referring to his relationship with Lucien. Lucien as the oldest male child was naturally made heir to his father’s fortune. It is no surprise that Lucien grew up into a very responsible man who dedicated his life to the family business.