[He brushes aside the title, for all that it's slightly strange to hear from her.]

I am not your lord, any more than you are my lady. You owe me nothing; you already offered me much of the same information, upon my own arrival.

All the same... [There's a slight, somewhat hesitant pause, because typically they don't get along and it makes it feel odd. When he continues, his voice is slightly softer, but entirely sincere.] you are welcome.