to be getting in the way of your friendship. your friends may need to know how much the arguing bothers you. tell them how you feel, and how much you value them both as friends. they don’t need to be best friends, but ask them to try to get along.
as for being stuck in the middle of arguments, tell them that you care about them both equally, and that you do not want to choose. if they are truly your friends they should understand how much it hurts you to see them fight.
when you are with both friends at the same time, try to act as a buffer between the 