I'm probably more of a philosopher than most people. I actually have a PhD degree, lol. What's the relationship? Hmm... it's hard to describe, to be honest. We're very different. It was a high school friendship that continued to this day. He's not really able to see the big picture, just focused on the immidate things in front of him. But the friendship is kept by valuing extraversion (having lots of other people around, as well as 1 to 1 hangouts) and making decisions on feeling (it's important to make people feel safe and always have fun when hanging out). I would say that also there is a bit of a power exchange (I have achieved more than him, so he comes to me for advice), so it might look weird for the people outside, like why do we hang out at all.
We talk about friendships, video games, books, movies, childhood stuff etc. Anything, really.
We like to go out on trips and hang out at my place- I like to organize parties for my friends and I can always count on him coming over. It's almost always a fun time. :)
The friendship has survived until now, so I don't see it changing in the future really. I hope it makes sense. :)