My Roommate Is Losing Himself to ISKCON—Help!

I am a firm Hindu believer but I’m living in the middle of a cult drama, and I need your advice. My roommate, who used to be a chill, normal believer, has gone *full-blown ISKCON fanatic* ever since we moved to Pune. Things have spiraled so much that I don’t even recognize him anymore. Here’s the mess: 1. He chants *4–5 hours every day*, decided he’ll never marry, and thinks leaving his family to join ISKCON is totally fine. His family is heartbroken, but he doesn’t seem to care. 2. He moved out to an ISKCON PG, and when his mom threatened a hunger strike, he pretended to move back by sending her a fake flat agreement—then replaced himself in the flat with a random guy and went back to the PG! 3. He’s been caught chanting and reading ISKCON literature *during work hours*. His manager gave him a final warning, but he seems completely unfazed. 4. Despite earning a *12 LPA salary*, he’s out on the streets selling ₹100 ISKCON event passes and *Bhagavad Gitas*. He’s even tried convincing me (and everyone else) that Krishna is superior to Shiva, sparking some heated debates. 5. He genuinely believes his devotion absolves him of all responsibilities—towards his job, his family, and even himself. Every time I try to talk to him, it escalates into a fight. It’s like he’s completely brainwashed, and his life is falling apart. His family is desperate, his workplace is on edge, and I’m stuck in the middle of it all. What do I do? Is there any way to bring someone back from something like this? Has anyone here dealt with a similar situation?