You know, the guy who’s been having that same angry conversation about the same fucking thing he’s been obsessed with for the last 5 years and demands that you take his view while going on long monologues and then immediately interrupting anyone who tries to get a word in edgewise? And then goes into a weeks-long suicidal despair if you try to leave the conversation? Any way to deal with that?
Just politely say “I don’t want to talk about that, let’s talk about tv shows, what’s your favorite comedy right now?” (Or whatever other mutually fun topic you want to talk about.) If he tries to keep talking about the topic just repeat that you’re not gonna talk about that and offer a second new topic. If he still wants to keep talking about it say “alright I’m gonna go talk to someone else about a different topic, I’ll catch you later”, then walk away from him. If he gets sad because of that then it’s not your fault or responsibility