She is not true to Paul.

M.de Chauxville knows something about her.

They have something in common which is not known to Paul or to any of us! Why do you not speak?
Why do you sit staring into the fire with your lips so close together ?" "Because I do not think that we shall gain any thing by discussing Paul and his wife.

It is no business of ours." Catrina laughed--a lamentable, mirthless laugh.
"That is because she is your cousin; and he--he is nothing to you.

You do not care whether he is happy or not!" Catrina had turned upon her companion fiercely.