Aldo: Booth loves you.
Brennan: Booth told you that?
Aldo: He confessed it to me. Not being married is a sin to him. I'm not sure a nonbeliever can understand that kind of sacrifice.
Brennan: I wanted to marry him.
Aldo: Not as much as he wants to marry you.
Brennan: Do you want me to have faith in him?
Aldo: You know, I've seen Booth do some terrible and ... and difficult things, but only if he was compelled by a very good reason.