no one likes to be called a fake fiend or a friend who actually isn't a friend but forced into the friendship for a reason you judge those people too easily but you should not actually there are two types of people which come in the category of a fake friend 

1. who actually should get judged because these people are in a friendship with you because you are good at something they are not and all they need i your help but in actual life you are just a geeky person for them who they just hand over their work and you are always available for them and they only have to talk to you when they need you and now you are just a part of their gossip with those who actually have worth in their life or say are there real friends these people don't actually care about your feelings the only thing matters to them is how easily can they get their work done and how easily emotionally unavailable they can be for you. as soon as work approaches them they approach you and you get available for them just for the sake of friendship 
2. the second category is the most tragic category they hangout with you for the sake of their best friends. they are their at the time with you because there best friend likes to hang out with you nd just for the sake of being and hanging out with their best friends they have to hang out with you they hate you more than anything just because you took their best friends attention but they would still be like hanging out because they can't live without their best friend they are not actually fake friends nor they are forced to be in a friendship with but the fear of losing their own best friend and they being more closer to you than them makes them to keep a friendship with you because every single person will agree that the anger of losing your best friend to another close friend of them is the mot painful thing you might ever face 

now you might say both are fake friends why to trust any of them i agree you should not trust both of them but you should not judge the second category because their possessiveness forced them to keep a friendship with you and if you have a friend from the very first category i have only one suggestion for you pickup your shoes and run as fast as you can