Aside from the feelings we get when we first enter a relationship, once the "newness" wears off and the "honeymoon" is over, sometimes we wonder if our partner is cheating on us. Whether you've been cheated on before or not or if there are signs, maybe lipstick on his collar or she is getting texts in the middle of the night that she just "has" to reply to. Sometimes our instincts tell us that something isn't right and we should further investigate our instincts. - Take note that affairs cost money. Hotels or motels, dinners, etc... Has she been spending more money on these type of things? Has she been buying sexy underwear, bras and lingerie that she didn't before? And have you been able to see her in her new sexy outfits or is she being secretive about wearing them out? Check credit card bills or look for receipts that indicate an increase in spending habits. - Keep a close eye on her phone habits. If she is disappearing into your bedroom or the guest room for long conversations? Is she texting for an unusually long amount of time than she had been before? Women tend to like to spend a lot of time on the phone communicating, if there is an unusual amount of time, more than usual, that she is spending on the phone then be aware, she just may have a new lover in her life. - It's human nature not to make eye contact with someone if you are being dishonest with them. Is your wife avoiding making eye contact with you when you two have a conversation? Try looking into her eyes when you talk to her and see what her eyes tell you. If she doesn't make eye contact with you or if she avoids it all together chances are is that she is hiding something from you. More than likely, she is cheating on you. - Is there a sudden change in her appearance? When a couple is married for a long period of time, they tend to be relaxed in appearance. Look for signs of your wife suddenly dressing up more, wearing more make-up, wearing a new perfume scent, buying lingerie that you never see her wear, etc... When she starts to tend to her appearance more, chances are it's not for you. Women always want to look their best when starting in a new relationship or an affair. And many many more!