A friend of mine told me the other day that there is a really simple way to know if your partner is cheating. If he (or she) gets jealous and starts accusing you of being up to something, it's a sure sign that he (or she) is in fact messing around (or seriously contemplating it). Logically that does make sense, but it can't be that simple! I'm not a very jealous person myself but I'm sure that many people who are, are not jealous simply because they feel guilty about what they themselves are up to. But I'd be curious to hear from others who have cheated or found out that they were being cheated on. Is there a connection with jealousy?