it's okay to help your friends about their conflicts with each other but it is more important to know how to help them resolve the conflict without doing it for them.

to handle conflict between friends is never that easy as it sounds. you have to treat them equally regardless of who among them is right or wrong. be extra careful on every word you say to avoid hurting both parties which may lead to another problem.

you can arrange a private talk between both party and be the middle man. remind them to keep calm when working out conflicts respectfully.

this is actually an uncomfortable situation for you, so make sure you listen carefully to both sides of the story. friendship may encounter conflicts from time to time so this is normal but still you need to do something about it.

they are your friends so i bet you know very well how to solve their conflicts. decide on a solution that works better and if it's not working then try something else.

the thing is, you are in the middle of all this so avoid taking sides with one friend and turn against the other. remain neutral during this conflict.