Venting, I gues

Have you ever felt used? Have you ever felt like you were living a lie? I think I am/was, I don't even know anymore. Just picture you have a friend, this friend needed you way more than you needed them. So here you are, helping this friend out with everything because their life sucks, and then one day they stop talking to you. Why? You don't know. Did you do something? No. The weird thing about it is the friend turns around and make things seem like they never needed you at all, and they were just pretending to need help. For what? I don't know, I guess attention. So after all the blood, sweat and tears, you wasted on them they just turn their back and acted like nothing ever happened. I've tried to put this in the past, but it still comes up and haunts me. What kind of person is that? Pretending to need help, pretending to care about stuff, and pretending to be a friend? I just don't get people sometimes.