3. Suddenly Interested in Your Schedule
In addition to being more secretive about her own whereabouts, cheating girlfriends often become more curious about the whereabouts of their boyfriends. This is because they want to know exactly when you will be away so that they can continue their affair with more security. It is important to note that this is only a sign of cheating when she has a sudden increased interest in your schedule. If she was always curious about your daily routine, then it could just be who she is.
