Search Results: not returning phone calls

OK I'll try making this as short as possible. I have this friend or purposive friend that happens to know where I am when they need something from me. But when the opposite is true when I need something from them or need them to do something they want answer my messages such as facebook, nor answer their phone or return my calls. And on top of that they never believe a thing I say or when they discover there is truth in my claims then they'll deny those claims when they benefit me and use them to benefit them selves (that part is a long story). And I haven't mentioned how they try to belittle and boss me at times and in my own home at that.

I feel done with them to be honest and now my question to you now is this. Would you unfriend them on facebook, blocked them on the phone and in other words completely wash your hands of them? What would you do?