Im getting a little tired of my bestfriend ):

not so long ago my best friend called me and not even after 10 minutes he said that talking with me is impossible and that he preferes to talk with another friend of ours. He alredy said this another time and i felt very hurt and i cried about it for like 1 hour but this time, when he said this, i felt neutral. Another thing i hate is that he sends me death treaths but we always joked like this, but now when he's killing me because i said something stupid, he tells me to kill myself and it's hard to understand if he's serious or not. Everytime i talk with him i feel uncomfortable and im always careful to the things i say but most of the times it ends up with him telling me that im a dumbass and that im a fucking idiot. Dude, i get it, stop it. I know that i say many stupid things, and i perfectly get it if you correct me but if you make fun of me for 10 fucking minutes straight and starts saying that im stupid and everything, i just understand how immature you are. Please, tell me if im wrong.