Dear Aunt Silvia,

I am a married man and a father of four adult children all living away from home. My wife and I live in the same house but different bedrooms for some reasons am not aware of. One day I came from my business trips and she had moved out of our matrimonial bed. I have every reason to suspect that she is having an extra marital affair because I have become sexually inactive after suffering from high blood pressure and  diabetes. What should I do to make her see that what she is doing is wrong?