Pretty Much that was his Explanation.
As for why they Didn't Boot/Vote-kick him.. That's What he Wanted... Had he Actually Done the Dungeon he'd have been done in 30 Minutes. Or he Could have Left... and Been able too Roulette again in 30 Minutes. Main Reason No-one was gonna Kick him was because he Said too do it and that he Wanted out, This was Like RIGHT at the Beginning As/After the Cutscene opening it up not even after a Pull.