Are you being emotionally hurt or are they also trying to hurt you physically as well? Then i guess you should have to isolate your self and separate from them. You know what mate if you are living in those persons that doesnt make you feel happy and contented at life then you should find another one. I also has a few friends in my  circle because i only choose the ones that are best for me but it also doesnt mean that i wont be interacting with them