TLDR: It's just me.
No one I personally know loves MMA like I do. I am that guy that breaks down who someone is, what got them to this fight, dramas, any lead ups. The guy who says the shit before Rogan says it. Pretty much just as nerdy as every single person on here with MMA.
I used to have a group of 7 that would all chip in. Slowly everyone backed out. Every once in a while I have one casual that will want to watch shit like a St. Pierre fight but 95% of the time it's just me, but I don't give a shit. I even set my wife free, she no longer has to watch them with me. I could go out and watch them at a bar or whatever, but I like to hear the commentary. Maybe it's an age thing, but I have a wife and kids at home and going out every weekend doesn't really work for me.
I am sure I could find an MMA buddy, but again, I don't care. People just don't give a shit about it like I do and frankly I have little care to be the educator anymore.