Don't apologize. It's not your fault.

I thought by becoming a cop, I could do something to help. But all my efforts were wasted.

[Javert finished the last of his tea. His mood soured by his inability to change things or to understand what the other was telling him. He moved to get up to leave, but stopped at her comment. He gave a nod in acceptance and allowed her to add her name to his contacts. He watched as she did so trying to learn how to do it.]

I appreciate your attempt to help explain things.