TweetListen to your heart. If you cross it, happiness will evade you. If the thought of living your life without your wife sickens you, then do anything you can in order to garner some understanding between you both. Go to counseling with her, write her letters.
If your sneaky comment proves that she is being unfaithful, circle your wagons, protect your investments, and make a gameplan based upon what you want.
Best of luck to you. Trust me, I understand this sort of thing can be heartbreaking.