dr. babu, based on your question i believe that you are a married man and you think your wife is cheating on you. sorry, if my assumption is wrong. i personally think that there are NO symptoms of your wife cheating on you; you have to find an evidence before you can say that she's cheating. if you don't have any evidence then you don't trust her and are probably thinking too much about things you shouldn't be. now, if you start looking for sings and symptoms, people will show you 1000s of them and they don't do any good except helping your suspicion grow bigger. that doesn't mean that women (or men) don't cheat, they do. but you can't just say that your spouse is cheating on you just because of few behavioral changes - we (humans) are dynamic: things keep on changing, and a lot of them are unpredictable. 
now, you can either assume that your wife is not cheating on you (just like you are assuming that she's cheating) and live happy until the day you find evidence that she was cheating (if any), or believe that she's definitely cheating and do whatever you wish.

bittertruth, i like your list but all of it is not true or at least not applicable to all people. Good thesis though!