Is it normal that i am not able to move out of a friendship?

I have a guy friend whom I really like. We are best of friends, however I don't actually think that the guy is a genuine friend. He lied to me about his relationship, even shouts on me many times. I think he just takes me as an option but doesn't actually cares for me. I know that with all that I have written, it is clear that I should move out of this friendship, but somehow I am not able to move on without this friendship. Many times I know that he is wrong in an argument but finally he ends up being angry and I end up running after him. Please help.....