You write that there is evidence that your wife is not "innocent". Assuming this, it can be either culpable negligence or intention. In either case, the possibly subconscious purpose may be to get you away from what you are doing (watching porn on the Internet?) and force you to interact with her.

If that is indeed your suspicion, you have two options: to tell everybody how stupid she is, or to save your marriage. Find out what she wants, what you want (- not always easy either -), and work on it.