Signs that she's definitely cheating (part2)

See if she's nagging you more than usual. Though she may have a lot of reasons for nagging you, one of them may be that she no longer finds you so alluring and that the relationship is on the rocks. She could also be feeling guilty for betraying you, and can be using her nagging to justify her behavior. If she points out every little thing you've done wrong, then she may be doing it to feel better about acting badly.

•     Again, this could just be a sign that she's unhappy in the relationship. Still, it's not a good sign.

•     Of course, if your behavior has changed, then maybe she has a reason for nagging you more.

See if she gets more secretive around her phone and computer. Previously, she showed you her computer to point out a funny article or asked you to check her texts for her and always left her phone out in the open. Now, she shuts her laptop any time you come into the room, never sends text messages in front of you, and even added a password to her phone -- or even her computer. If she wasn't previously private and has changed her tune, then she must not want you to see who she's been chatting with.

•     If you're really feeling bold and catch her texting, you can casually ask her who she's talking to. See how she reacts. Is she jumpy and defensive, or does she give a quick and honest-sounding answer?

See if she goes MIA for hours without explanation. This is one of the biggest red flags that your woman is being unfaithful. If you call her or text her and hear nothing back for several hours, then you may have a problem. If it happens once or twice, fine. But if it's happened multiple times a week and she always said her phone died or that she didn't hear the ring, your guard should be up.

•     When she's MIA for a few hours, casually ask her what she's been up to. Try to read her face: does she deflect you and look embarrassed?

See if she's suddenly more interested in your schedule. You may think that this is a sign that she really cares about you, but it could be her way of making sure you don't catch her cheating. If she asks you to be clear about when you're getting home and even texts you asking, she may not be eagerly waiting for your arrival. She could also be asking to make sure that you won't be hanging out anywhere near the place where she'll be having her romantic rendezvous.

•     If you want to try to catch her, tell her you won't be going to a popular spot in town -- like the go-to happy hour bar, for example, and change your mind at the last minute and show up there.