I think he accused some of the kr tier 2 teams of leaking scrim info to the kr tier 1 teams. And he clowned on T1 after they lost to Talon, and then it all snowballed from there
He didn't fist bump Termi and termi bmd him by taking a timeout when drx was already up 12-4 iirc and from then on he's been indirectly expressing his distain towards termi any chance he gets to
he didn't specifically said it was drx or t1 but buzz (when he was still in drx) responded to his claim that was where the beef started. also frost did the unprofessional thing to do by a coach by didn't do fist bump with termi, so termi claps back with calling a to in 12-4 lead against talon.
He pretends to be cool and irrelevant, but he's a motherfucking psycho who spends five hours a day on Twitter and monitors everything that criticizes him. And on his birthday, two Korean teams he hates won. Enough gifts.