"Likewise, if he holds back the warm and fuzzies (i.e.he stops saying 'I love you,' no longer holds your hand in public or barely hugs you anymore), he could be cutting off his feelings of affection for you, so he can focus on his new partner without feeling as guilty," says Dr. Guilt-ridden behavior is a dead giveaway that your partner is hiding something.

So how do you know whether all the Hollywood cheating scandals are making you paranoid or if your partner's actually in the arms of another woman?

Check out some changes in behavior that could mean he's looking for love elsewhere.

Is his mobile phone turned off during times you normally can reach him, or does he claim not to have had any cell service for hours at a time?

Or maybe he says he has business meetings all night or a work conference all weekend, so don't call him, he'll call you?

If your husband starts transforming into a different man, it may be more than a mid-life crisis, warns Manette.

"A man who drastically alters his clothing style, appearance or body shape for no apparent reason may be having an affair.His Attitude Towards You Dramatically Changes Changes in his mood can point to more than just stressful times at work."Men often get fidgety or irritable when they're supposed to be in two places at once.According to De Lorenzo, if he's frequently unavailable, it may be because he's with someone else."This is how he can spend time with the other woman without having to rush home.By making that loud and clear, he feels more justified in cheating and less guilty," explains Jennifer Oikle, Ph D, psychologist, dating coach and founder of My Soulmate 3.