I Can Be Friends With People Totally Different From Me

I met him on another site. He's very passionate and outspoken person. Whatever I would post he would challenge me. We'd go head to head and wouldn't talk for a couple of days. This went on for awhile I would meddle in his posts like he was doing mine. I wanted to block him but I didn't want to give him that satisfaction of knowing that he had gotten to me. One day after weeks of not talking he sent me a friend request I accepted and he sent me a message and that has been over 2 years ago we still butt heads but now I can call him my friend.