My Bully, or Best Friend?

My best friend. What? Once my best friend, now my bully? What did I ever do to deserve such hatred from him? I thought we both agreed to stay together, never let anything break us apart. I thought wrong then. Zayn Malik, once my best friend, now my bully. What will happen next? Will he realize how much pain he's putting me through? Or will he not care and do it anyway? Will he go back to being him old self, or stay like this forever.......