That is somewhat true and somewhat false. I don't really "keep them together," but when a quarrel arises between my friends, I get on it ASAP and work with them to stop the dilemma.
like the friend that's always there for everyone when they're upset, the one people talk to and go to for advice. the one people depend on, the one people unload their traumas on because they know you'll be supportive for them no matter what