I know this probably won’t help but just remember there are always two sides to every story usually when it is two people one of them is always the mastermind, and the other think they already dug the grave so deep that it’s not worth losing both of their friends I’ve been in the situation like this before. Remember every person has a side to the story you don’t have to ask for it but if you really wanna keep these friends or at least, one of them is important to know their side.