Is your lover a big FaceBook user? Are you on their FaceBook account? Have you noticed lots of people from the opposite sex appearing on their FaceBook account? Just like online chatting, FaceBook flirting has been a huge phenomenon.  It’s easy for people to communicate with one another on FaceBook without arousing suspicion. FaceBook is meant for people who actually know one another, so if your lover suddenly has tons of friends from the opposite sex… they may be fishing for an affair.