Why do men accuse women of cheating?

Some think they are or may . Some use it as a control thing to keep a woman off balance. Some are cheating themselves, and accuse the woman to deflect her attention. Some are insecure. Some are just plain paranoid. None of this is pleasant. If you are the woman being accused, tell him to give you some concrete reason , or get off your back. If you are the accuser, make you position clear or knock it off.