I seriously don't even understand this situation, like what?

I was with a couple of friends, and after a while I began browsing Reddit. When I said a joke (while on my phone) this guy began arguing with me that I'm using reddit, and that I shouldn't even be using Reddit, because I'm a normie, and he was using Reddit way before me. I actually consider all humor enjoyable, and didn't even understand him calling me a "normie", since we are in the same group of friends, and we laugh at the same jokes we say among ourselves, but whatever, I'm a girl, and I have to be a "normie". I didn't hurt me that bad, but it definitely wasn't a good feeling hearing him rant about me using one of the biggest platforms on the internet. What a douche

Edit: to be entirely clear, I don't consider him my close friend, he is only in my group of friends, so I thought of him as a friend as well, but thank you for trying to help me get rid of him in my life, I will try to actively ignore him, so his stupidity cannot affect me anymore