What do you think of me bullying my best friend?
Why do you want to do that?
He's suddenly become ridiculously popular and won't even speak to me anymore.
Maybe talk to him and tell him you want to spend more time with him. Its not a good solution to go to that extreme right away.
Are you stupid? I'm making him suffer because he doesn't pay attention to me.
Listen, trying to make others suffer for your own personal hatred will not benefit you. I don't mean to be rude, but others are not obligated to give you their full attention all of the time. Try to have a private discussion with your friend and go from there.