In relationships there could be real people and fake people, meaning that some of your friends could act all nice to your face and the opposite behind your back. That is called backstabbing.
People often have to deal with backstabbers everywhere. If you want to know how to catch a backstabber, here's a clue. They want to gain something for themselves and gain power over you. You might have friends who smile at you but behind your back, they attack you. You also have to be very careful about who you hang out with because you don't know who are real and who are not.
