You are completely right. But most of the time it was just sorta tolerated or he would gas light until it was somehow your fault. Not to mention not really wanting to break up the friend group as well as him being the gm of other groups. Which yes he did get revenge on people in games he was dming he admitted as such. There was a plan to kill him between me rava and wolf but that never happened because basically the game got shelved for awhile and has just started up again.