College friend group is breaking up and I don't know what to do.

I spoke too soon in the "things I did". essentially two people are breaking up and it's going horribly. I don't know who to believe as I don't know the full story, and I don't want to choose a side because they have both been wonderful people, but I don't want to be supporting a bad person. However, I don't even know who's in the wrong. This friend group has been chipping away since the beginning of this year and I'm feeling the dread that it's not going to last. I know it's not my job to fix everything but I don't want this group to die.