Well she is a first class cook and inevitably we find that we get inferior food at inflated prices. I do what I am told and NEVER do something that she hasn't suggested BUT:
Goldhoop, even if he is having an affair, what is the big deal. Firstly statistics tell us that it is almost certainly going to "fizzle" out and having a "mistress" is accepted in France, Greece and many other countries. He is only looking for excitement and sex, which may be missing in your marriage.
Keep "stum" or get a lover yourself if you think that it will help.