[Salieri's expression softens at that. It is shockingly clear how much the man loves his wife, and though his acting was very good for his first time, he's starting to get the feeling that he let his doubts get the better of him]

I have every faith that you will, my friend. Anyone who speaks to you for more than a moment could see how much you adore her. [it's lightly teasing, but mostly admiring]