well, it's not quite correct to say that they are friends. he interacted with him on twitter in a positive manner and included a reference to him in season 1. there's no confirmation of him being in season 2, it's more that idiots on the internet are like "oh, you should include him."
i get the sense that adi is developmentally arrested at high school age because that's when he peaked, and he just enjoys being the center of attention regardless of where the attention is coming from